For tightening tailpiece studs without damaging the plating, as is possible using a conventional screwdriver. Use as shown for tailpiece studs. For Tone-Lock™ bridge lock nuts, use the unnotched end when the top of the bridge stud is below the lock nut slot; use the notched end when the bridge protrudes into the lock nut slot. Included FREE with Tone-Lock™ Bridges, Tone-Lock™ Kits, & Tone-Lock™ Master Kits.
– use long edge to tighten Tone-Lock studs to prevent marring!
Hover over these links for specifications of items included in this Tone-Lock™ Kit: