8-pc set: 2,2.5,3,4,5,6,8,10mm (PK-4212 includes bench/wall-mount). Speed-Bearing attachment on 3-8mm secures bolt head. Shop-quality L-shaped full metal hex wrench set. Made from Bondhus Protanium high torque steel. Bondhus balldriver long-end for 25 degree angle (2-6mm).