Feature●The set is manufactured from chrome vanadium for increased durability. Chrome vanadium is made up of various alloys giving it greater hardness and strength.●Utilizes a blackened phosphate coating to provide robust corrosion protection, ensuring long-lasting durability even in challenging environments.●Suitable for use with all 1/2" & 3/8" tools including air and battery operated power toolsDescription The Blue Spot Tools 17 PCE 3/8" and 1/2" Impact E Torx Sockets are ideal for use with 3/8" and 1/2" tools. The sockets are manufactured from heat treated chrome vanadium for increased durability. Blackened phosphate coating protects against corrosion. Complete with useful carrying case for quick and easy storage.