3 treble and 3 bass, set of 6.
The 133 Series is engineered to the most precise standards of excellence with the classic look of vintage styling. Worm and gear are cut to mesh perfectly, thereby eliminating backlash and slippage. The housings are self-lubricating for a lifetime of trouble-free service.
Sealed-in, lubricated gears
Stamped housing
15:1 gear ratio
11/32” post hole
Post length to hole: 22mm
Overall post length: 25mm
Weight per pc/per set: 1.0oz/6.0oz
Max. string gauge: .074”
Hardware included (bushings, screws)
Drop-in replacement for:
505FV Series
533 Series
For detailed specifications and/or fitting guides please locate this item on the Grover website where they offer more detailed information.