Internal hex key in workshop quality with ball end for hard-to-reach bolts, a straight end for high-torque applications. Consisting of 1.5 / 2 / 2.5 / 3 / 4 / 5 / 6 / 8 and 10 mm. Chamfered ends for easier engagement on the screw heads. Hardened industrial quality steel. Chrome-plated for long usability.