IIT 92792 2-Inch Peg Board Hook, 100-Piece Includes 9 metric combination wrenches from 8mm to 16mm with rack. Chrome vanadium steel - Mirror Polished - Precision machined. Heat-treated construction for high durability and strength. 12 Point flank drive provides 25% more torque. Sizes: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm.