SUMMIT professional luthier open end wrench

SUMMIT professional luthier open end wrenches, specially designed for easy, "damage-free" tightening machineheads hexnut, when strings on. Special tool steel entirely hardened and tempered to 56÷60 HRc, surface finish chrome plated according to: EN 12540.

Comes in a variety of sizes:

-10mm
-12mm
-14mm
-15mm
-7/16"
-open end 12mm/open offset ring 14mm

Also available in a convenient set of all six saving you 12%!

https://youtu.be/0CIp2vfuMBo

Part # 8007