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. Manufactured from heat treated chrome-molybdenum steel. Blackened phosphate coating protects against corrosion. Ideal for use with air tools. Complete with handy carrying case for quick and easy storage.