Socket set forged from high quality chrome vanadium steel. TORQUE DRIVE® sockets contact the fastener on the sides rather than the corners, reducing corner rounding and allowing 20% more torque. Chamfered edges allow easiest socket placement on fastener, increasing productivity and reducing frustration. Extra long deep sockets ensure maximum accessibility. Meets or exceeds US Federal specs GGG-W-641E and Canadian Government specs CDA39-GP-12b and ANSI specification. Includes metal case. 7/8, 15/16, 1, 1-1/16, 1-1/8, 1-3/16, 1-1/4, 1-5/16, 1-3/8, 1-7/16, 1-1/2, 1-5/8, 1-3/4, 1-13/16, 1-7/8 and 2 inch standard length.