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:

-open end 12mm/open offset ring 14mm

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



Part # 8007