Guyker 440mm Guitar Truss Rod - Trussrod Acting Steel Truss Rod Bar Compatible with GS Gibson Electric Guitars Luthier Tool

Part of guitar setup is truss rod adjustment to make the neck straight. 

Features:
Guitar truss rod.
Total length is 440mm rod for making or repairs.
Made of high quality of steel.
Fast and easy to operate.
Compatible with GS Gibson Electric Guitars.
A must-have tool for pro luthier shops and home shops alike.

Note:
Please allow 1-2mm error duo to manual measurement.