- L3+R3 tuners retrofit guitars with modern 10mm headstock holes
- Small Hex Buttons
- Grip-Lock pin and thumb wheel system clamps onto your string, no wraps needed
- Schaller® M6 Mini footprint
- Includes UMP (Universal Mount Plate), bushings and screws
- 15:1 tuning ratio
Upgrade your tuners to improve the tuning accuracy and stability of your guitar with our Tuner Upgrade Kit. With the patented UMP™(Universal Mount Plate) included free in this kit, tuners will retrofit without drilling or screwing.