There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 71.27mm / 2.798"Width – 3.20mm / 0.126"Height – 8.41mm / 0.331"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 71.27mm / 2.798"Width – 3.20mm / 0.126"Height – 8.41mm / 0.331"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odourless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer! NuBone ~ Slotted 12-String NutPack of 10 Measure Length Width Height E to E MeasurementsInches 1.875" 0.187" 0.341" 1.580"Inches 1 7/8" 3/16" 11/32" 1 19/32"Millimeters 47.63mm 4.75mm 8.66mm 40.13mm Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 44.32mm / 1.745"Width – 5.69mm / 0.224"Height – 9.17mm / 0.361"E to E – 36.02mm / 1.418"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 43.41mm / 1.709"Width – 5.79mm / 0.228"Height – 9.17mm / 0.361"E to E – 35.00mm / 1.378"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 48.21mm / 1.898"Width – 4.80mm / 0.189"Height – 8.64mm / 0.340"E to E – 40.49mm / 1.594"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 46.48mm / 1.830"Width – 4.75mm / 0.187"Height – 8.66mm / 0.341"E to E – 39.50mm / 1.555"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 43.36mm / 1.707"Width – 4.88mm / 0.192"Height – 8.81mm / 0.331"E to E Inches – 36.45mm / 1.435"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 43.36mm / 1.707"Width – 4.88mm / 0.192"Height – 8.81mm / 0.331"E to E – 36.45mm / 1.435"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 43.99mm / 1.732"Width – 6.14mm / 0.242"Height – 9.19mm / 0.362"E to E – 34.70mm / 1.366"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 44.07mm / 1.735"Width – 4.98mm / 0.196"Height – 9.30mm / 0.366"E to E – 36.20mm / 1.425"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 44.81mm / 1.764"Width – 3.30mm / 0.130"Height – 6.48mm / 0.255"E to E – 34.59mm / 1.362"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 42.93mm / 1.687"Width – 3.26mm / 0.128"Height – 5.08mm / 0.200"E to E – 35.05mm / 1.380"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 48.18mm / 1.897"Width – 4.95mm / 0.195"Height – 8.25mm / 0.325"E to E – 41.40mm / 1.630"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!MeasurementsLength – 43.99mm / 1.732"Width – 6.14mm / 0.242"Height – 9.19mm / 0.362"E to E – 34.70mm / 1.366"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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The model 1243-00 is a great option to upgrade or replace the nut on your Ukulele.It is available in TUSQ and NuBone XB formulations.MeasurementsLength:  1.398”  /  35.51mmWidth:  0.171”  /  4.34mmHeight:  0.289”  /  7.35mm      

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The model 1234-00 is a great option to upgrade or replace the nut on your UkuleleIt is available in TUSQ and NuBone XB formulations. Measurements     Length:  1.381”  /  35.08mmWidth:  0.196”  /  4.98mmHeight:  0.236”  /  6.0mmString Spacing:  1.071”  /  27.2mm

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There is no reason to accept a cheap plastic nut or saddle when you can add tone with NuBone Plastic Nut and saddles vary greatly; many are made without any consideration for the instrument, tend to be too soft or too brittle, even hollow, killing tone and sustain.  NuBone is designed to enhance tone and is backed by 20 years of research and development. NuBone is a derivative of Graph Tech's highly resonant TUSQ material, manufactured to very close tolerances under high heat and pressure.  We use specific ratios that contribute to NuBone's hardness, workability, appearance, and most importantly, guitar performance.  Odorless when sanded, it is strong, outlasting and outperforming plastic.  NuBone is the answer!

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The GraphTech NuBone XB Soprano Ukulele Saddle is a great option to upgrade or replace the saddle on your Ukulele.It is available in TUSQ and NuBone XB formulations.Length  2.441”  /  62.0mm Thickness  0.128”  /  3.25mm Height  0.287”  /  7.28mm

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The GraphTech NuBone XB Soprano Ukulele Saddle is a great option to upgrade or replace the saddle on your Ukulele.It is available in TUSQ and NuBone XB formulations. Length  2.086”  /  52.99mm Thickness  0.114”  /  2.89mm Height  0.256”  /  6.5mm

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The 9260-00 is a great option to upgrade or replace the saddle on your Ukulele.It is available in NuBone XB formulation.MeasurementsLength:  2.41”  /  61.21mmWidth:  0.131”  /  3.32mmHeight:  0.256”  /  6.51mm

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The GraphTech NuBone XB Soprano Ukulele Saddle is a great option to upgrade or replace the saddle on your Ukulele.It is available in TUSQ and NuBone XB formulations.Length  2.083”  /  52.91mm Thickness  0.111”  /  2.84mm Height  0.13”  /  5.85mm

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The GraphTech NuBone XB Soprano Ukulele Saddle is a great option to upgrade or replace the saddle on your Ukulele.It is available in TUSQ and NuBone XB formulations. Length  2.41”  /  61.21mm Thickness  0.131”  /  3.32mm Height  0.297”  /  7.54mm

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The GraphTech NuBone XB Soprano Ukulele Saddle is a great option to upgrade or replace the saddle on your Ukulele. Length: 2.087"  /  53.0mm Width: 0.114"  /  2.9mm   Height: 0.276"  /  7.0mm

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Play aggressive, shred or bend strings without worry! One of the key causes of tuning frustration is string binding at the nut. Black TUSQ XL, impregnated with PTFE, the slipperiest substance on earth, alleviates the binding grip the nut has on the strings. String simply glide back into tune!??How does it sound? With Black TUSQ XL you will hear more richness from every note you play. Engineered from the same material as our highly esteemed TUSQ, it has all the tonal benefits, bringing out the hidden harmonics by transferring your strings vibrations efficiently to the guitar. Black TUSQ XL is consistent from piece to piece, and within each piece, to offer you harmonically rich tones without the problems associated with natural materials. Measurements:  Length – 44.07mm / 1.735"  Width – 4.98mm / 0.196"  Height – 8.36mm /  0.329" E to E – 36.20mm / 1.425"Note: All Graph Tech Nut and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.

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The PRN-8411 and PRN-8441 are right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners. It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates. 4 different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes. Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 13/32" (10mm)String post diameter: 0.236" (6mm)String post length to string hole: 0.910” (23mm)Weight per single machine head: 0.083lbs (38g)Weight per set of six: 0.496lbs (225g)String diameter up to 72 gaugeIncludes 6 machine heads, mounting screws and bushingsIncludes complimentary 4 sets of aluminum mounting plates RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.From Low E to High E 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.We balanced the gear ratios to each string simplifying the tuning process.With RATIO®, a half-turn is a semi-tone!Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

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The PRN-8411 and PRN-8441 are right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners. It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates [opens in new tab]. 4 different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes. Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 13/32" (10mm)String post diameter: 0.236" (6mm)String post length to string hole: 0.910” (23mm)Weight per single machine head: 0.083lbs (38g)Weight per set of six: 0.496lbs (225g)String diameter up to 72 gaugeIncludes 6 machine heads, mounting screws and bushingsIncludes complimentary 4 sets of aluminum mounting plates RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.From Low E to High E 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.We balanced the gear ratios to each string simplifying the tuning process.With RATIO®, a half-turn is a semi-tone!Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates.4 different sets of InvisoMatch mounting plates in brushed aluminium are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 10mm  /  13/32"String post diameter: 6mm  /  0.236"String post length to string hole: 23mm  /  0.910”Weight per single machine head: 38g  /  0.083lbWeight per set of six: 225g  /  0.496lbsString diameter up to 72 gaugeIncludes 6 machine heads, mounting screws and bushingsIncludes complimentary 4 sets of aluminium mounting plates

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The PRN-8441 are right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners. It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates.4 different sets of InvisoMatch mounting plates in brushed aluminium are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 10mm  /  13/32"String post diameter: 6mm  /  0.236"String post length to string hole: 23mm  /  0.910”Weight per single machine head: 38g  /  0.083lbsWeight per set of six: 225g  /  0.496lbsString diameter up to 72 gaugeIncludes 6 machine heads, mounting screws and bushingsIncludes complimentary 4 sets of aluminium mounting plates RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.From Low E to High E 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.We balanced the gear ratios to each string simplifying the tuning process.With RATIO®, a half-turn is a semi-tone!Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

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The PRN-8441 are right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners. It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates.4 different sets of InvisoMatch mounting plates in brushed aluminium are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 10mm  /  13/32"String post diameter: 6mm  /  0.236"String post length to string hole: 23mm  /  0.910”Weight per single machine head: 38g  /  0.083lbsWeight per set of six: 225g  /  0.496lbsString diameter up to 72 gaugeIncludes 6 machine heads, mounting screws and bushingsIncludes complimentary 4 sets of aluminium mounting plates RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.From Low E to High E 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.We balanced the gear ratios to each string simplifying the tuning process.With RATIO®, a half-turn is a semi-tone!Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

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Ratio Tuned Machine Heads ~ Acoustic 3+3 / 2 Pin Contemporary ~ OffsetRatio – Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation. We balanced the individual gear ratios to each string dramatically simplified the tuning process. No more overshooting the G string or twisting away on the high E string. With Ratio, each half key turn equals one semitone change on all strings! Quicker, more accurate tuning on every string.

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Ratio Tuned Machine Heads ~ Acoustic 3+3 / 2 Pin Contemporary ~ OffsetRatio - Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation. We balanced the individual gear ratios to each string dramatically simplified the tuning process. No more overshooting the G string or twisting away on the high E string. With Ratio, each half key turn equals one semitone change on all strings! Quicker, more accurate tuning on every string.

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Ratio Tuned Machine Heads ~ Acoustic 3+3 / 2 Pin Contemporary ~ OffsetRatio - Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation. We balanced the individual gear ratios to each string dramatically simplified the tuning process. No more overshooting the G string or twisting away on the high E string. With Ratio, each half key turn equals one semitone change on all strings! Quicker, more accurate tuning on every string.

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The PRB-4221 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2 +2 configuration. In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong. Headstock Configuration 2 + 2  Ratio Tuned Machine Heads: The New Standard In Tuning Technology Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 0.720" (18mm)String post diameter: 0.547" (13.9mm)String post length to string hole: 0.807” (20.5mm)Weight per single machine head: 3.5oz (99.3g)Weight per set of four: 14oz (397g)String diameter up to 130 gaugeIncludes 4 machine heads, mounting screws and bushings RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low E to G - 36:1, 30:1, 20:1, 18:1. We balanced the gear ratios to each string simplifying the tuning process. With RATIO®, a half-turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. 

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The PRB-4220 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2 + 2 configuration. In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong. Headstock Configuration 2 + 2  Ratio Tuned Machine Heads: The New Standard In Tuning Technology Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 35/64" (14mm)String post diameter: 0.547" (13.9mm)String post length to string hole: 1.030” (26.1mm)Weight per single machine head: 1.86oz (53g)Weight per set of four: 7.44oz (212g)String diameter up to 0.98 gauge (or larger if taper-wound)Includes 4 machine heads, mounting screws, and bushings RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low E to G - 36:1, 30:1, 20:1, 18:1. We balanced the gear ratios to each string simplifying the tuning process. With RATIO®, a half-turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. 

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The PRB-4220 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2 + 2 configuration. In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong. Headstock Configuration 2 + 2  Ratio Tuned Machine Heads: The New Standard In Tuning Technology Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 35/64" (14mm)String post diameter: 0.547" (13.9mm)String post length to string hole: 1.030” (26.1mm)Weight per single machine head: 1.86oz (53g)Weight per set of four: 7.44oz (212g)String diameter up to 0.98 gauge (or larger if taper-wound)Includes 4 machine heads, mounting screws, and bushings RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low E to G - 36:1, 30:1, 20:1, 18:1. We balanced the gear ratios to each string simplifying the tuning process. With RATIO®, a half-turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. 

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The PRB-5230 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2+3 configuration. In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong. Headstock Configuration 2+3 Ratio Tuned Machine Heads: The New Standard In Tuning Technology. Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 35/64" (14mm)String post diameter: 0.547" (13.9mm)String post length to string hole: 1.030” (26.1mm)Weight per single machine head: 1.86oz (53g)Weight per set of six: 9.3oz (265g)String diameter up to 0.98 gauge (or larger if taper-wound)Includes 5 machine heads, mounting screws, and bushings RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low E to G - 36:1, 30:1, 20:1, 18:1. We balanced the gear ratios to each string simplifying the tuning process. With RATIO®, a half-turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. 

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The PRB-5230 is a right-handed set of RATIO® Calibrated Machine Heads for BASS that use a 2 x 3 configuration. In order to achieve higher gear ratios, Ratio are the world's first machine heads using a double envelope gear design with a hardened steel gear. Amazingly smooth and super strong. Headstock Configuration 2 x 2  Ratio Tuned Machine Heads: The New Standard In Tuning Technology. Gear ratio: unique for each string position - one turn-one tonePeg holes diameter required: 35/64" (14mm)String post diameter: 0.547" (13.9mm)String post length to string hole: 1.030” (26.1mm)Weight per single machine head: 1.86oz (53g)Weight per set of six: 9.3oz (265g)String diameter up to 0.98 gauge (or larger if taper-wound)Includes 5 machine heads, mounting screws, and bushings RATIO® patented gear technologyRATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low E to G - 36:1, 30:1, 20:1, 18:1. We balanced the gear ratios to each string simplifying the tuning process. With RATIO®, a half-turn is a semi-tone! Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string. 

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