Grover Roto-Grip Locking Rotomatics 502CK Chrome Keystone Set of 6

The 502 Series utilize the famous Rotomatic® design with a “thumb screw” mechanism which locks the string into place, allowing for quick string changes. To operate, insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw.

SPECIFICATIONS

Gears: Sealed-in, lubricated
Gear Ratio: 18:1
Post Hole: 25/64”
Post length to hole: 23mm
Overall post length: 28.2mm
Weight per pc/per set: 1.6oz/9.6oz
Max. string gauge: .074”
Hardware included: Bushings, Washers, Screws
Drop-in replacement for:

• 102-18 Series

• 102V Series

• 103 Series

• 106 Series

• 109 Series

• 109-18 Series

• 135 Series (Top mounting hole will be visible)

• 136 Series (Top mounting hole will be visible)

• 502 Series

• 509 Series