The Blue Spot Tools 6Pce 1/2" Impact Torx Bits T55-T100 are ideal for use with 1/2" tools and manufactured from chrome molybdenum for increased durability. Blackened phosphate coating protects against corrosion. Supplied in plastic tray for convenient storage. Manufactured from chrome molybdenum for increased durability Blackened phosphate coating protects against corrosion Ideal for use with 1/2" tools Length 45MM Supplied in plastic tray for convenient storage T55 T60 T70 T80 T90 T100.