Named for the distinctive grooves on the cast gear housings, these are improved reproductions of the deluxe tuners used on many Gibson® guitars.
Features:
- Nylon worm bearings for smooth operation
- 15:1 gear ratio for precise tuning
- Maintenance-free sealed lubrication
- Set of 6 (3-left/3-right)
- Gold finish with plastic keystone knobs
- Mounting screws (12) and press-fit bushings (6) included
- 11/32"-diameter pegholes required
Installation Tips —
Bushings: We recommend our Standard Peghole Reamer (sold separately) to cut smooth, perfectly round holes.
Mounting screws: Pilot holes required. Installing delicate screws into hard wood requires great care and accuracy. We highly recommend a No.44 drill bit for the pilot hole before installing these screws. Lubricate the screw threads with cutting lubricant (also wax or a bar of soap) to reduce friction and help them thread properly.
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Product safety information may be available here.

