Kobalt's 1/2-inch drive, 16-piece metric impact socket set includes only deep impact sockets. Sockets are constructed from chrome vanadium steel and are heat treated to withstand everyday use in your home garage or professional shop. This set is intended for use with an impact tool to provide maximum installation of heavy duty fasteners. Each components has a pin hole to safely attach to your impact tool and 6-point sockets have a chamfered opening to help guide socket on to the fastener. Size callouts are laser-etched on each socket for easy identification in or out of the blow-molded carrying case. 1/2-inch drive deep impact socket set contains the following metric sizes 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25 mm This set is intended for use with an impact tool to provide maximum installation of heavy-duty fasteners 6-point design helps reduce the risk of slippage and rounding of fasteners Constructed of chrome vanadium steel and heat treated for strength and durability Durable impact-grade, black-oxide finish Size callouts are laser etched Meets or exceeds ANSI specifications Hassle-free lifetime guarantee Finish: Black oxide Drive Size: 1/2-in Socket Depth: Deep Socket Size: Set Weight (lbs.): 8.64 Case Type: N/A (no case) Deep Socket(s) Included: Yes Flip Socket: No Intermediate Socket(s) Included: No Material: Steel Measure Type: Metric Points: 6-point Set/Individual: Set Shallow Socket(s) Included: No Spark Plug Socket(s) Included: No Total Number of Pieces: 16 Universal: No Warranty: Lifetime CA Residents: Prop 65 Warning(s): Yes UNSPSC: 27111700