The BlueSpot 8 Pce 1/2" Impact Torx Sockets (T30-T80) are manufactured from heat treated tempered chrome-molybdenum steel for strength and durability. Blackened phosphate coating to protect against corrosion. Ideal for use with impact guns and high torque tools. Contains socket sizes: T30, T40, T45, T50, T55, T60, T70, T80. Complete with handy carrying case for quick and easy storage.