The ATD Tools 14-pc 3/4" Drive 6-Point SAE Deep Impact Socket Set, No. 64114, is heat-treated for strength and durability. Manufactured using chrome molybdenum alloy steel, the set meets or exceeds ANSI specifications. The set includes sizes: 3/4", 13/16", 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", and 1-5/8".