Stanley 95-442 10-Piece 3/8-Inch Drive Standard Socket Set, Metric Max-Drive design, a unique radius corner design that provides 15% more torque Helps reduce fastener wear without contact with the outer 5% of the fastener Standard socket sizes 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm Limited lifetime warranty