Ball end Allen Key for truss rod

two sizes; 4mm  ( 70mm by 120mm )

                 5mm  (70mm by 120mm)

durable carbon steel, longer than usual for ease of use.

the ball end allows for quicker tightening as it can wobble a bit but

the contact point is smaller so use the standard end for final tightening and loosening.

Wooden Handled Allen key

4mm  beech hardwood handle 125mm long