Corded Drills, Drivers -Hex Wrench Generic Brand Highlights Hex Wrench Description: (Black) Drill limited bushing, clamping device, positioner, works with standard bits and bradis points Screw type collar will not harm pieces, positively locks along piece, is hardened and tamper proof (Silver) Made of A3 chrome plated Using drill bit to align with round print so two blocks come together perfectly Available to connect two blocks Specification: (Black) Chuck Shaft + Hex Key: Material: High Carbon Steel Size: Approx. 3, 4, 5, 6, 8, 10, 12, 16 mm / 0.12, 0.16, 0.20, 0.24, 0.31, 0.39, 0.47, 0.63 inch ( Silver) Spike Center Pin Set: Material: A3 + Chrome Plated Ankle Joint Alignment Tool Center Point Pin Set for approx. 6/8/10/12mm dowel holes (About 0.24/0.31/0.39/0.47 inch) Durable, wear resistant, corrosion resistant, necessary for carpentry Very easy to store and maintain Package includes: 8 Pieces Drill Bit Depth Tip Collar 1 Piece Hex Wrench 8 Pieces Center Point Drill Bit