TEKTON SHD92215 1/2 in. Drive 6-Point Socket Set with Rails, (78-Piece) (3/8 in. to 1-5/16 in. 10 mm to 32 mm)TEKTON 6-point sockets are ideal for working with hex-shaped fasteners. Theyre designed to grip the sides and not the corners of the fastener heads, which prevents round-off. Their extended length allows the deep socket to fit over long fasteners and reach into recessed areas. The large, die-stamped markings are permanently impressed into the material and optimized for readability.