Dewalt, 12 Piece, 3/8" Socket Set, Set Includes: 3/8" Drive Pear Head Ratchet, 3/8" Drive, 3" Extension, 6" Extension, 3/8" Drive Spark Plug Socket, 3/8" Drive 6 Point Sockets: Metric 10, 11, 12, 13, 14, 15, 16, 18, The Sockets Include DirectTorque Technology To Help Prevent Rounding Of Fasteners & To Provide Better Grip.