Allen key 4mm extra long stubby
This allen key is specially suited for adjusting your hex nut trussrod. Thanks to the slightly shallowed head (stubby), it is more easy to enter the trussrod. Due to the bigger angle of apr. 115° and the short head size of just under 1cm, it is so much more easy to use in the thight spaces of a trussrod. The extra long handle is an additional bonus!
This tool will safe you time and frustration, maybe you will even look forward to the next trussrod adjustment!