3/8 Inch Drive 12-Point Socket Set with Rails, 18-Piece (5/16-3/4 in.)
.Theyre designed to grip the sides and not the corners of the fastener heads, which prevents round-off. The large, die-stamped markings are permanently impressed into the material and optimized for readability. Their extended length allows the deep socket to fit over long fasteners and reach into recessed areas.