Professional tools for commercial or occasional use Comprehensive set of Hex, Torx and spline bit sets All of the set is 1/2" drive so will fit any standard 1/2" drive ratchet, extension, power bar etc... Manufactured from chrome vanadium steel for strength and durability All of the bits are shallow so perfect for access into tight hard to reach awkward areas Heat treated, hardened and tempered for maximum strength and durability Knurled ring on the bits for maximum grip in oily slippy conditions All 3 sets come in EVA foam inserts for easy storage and transportation SET INCLUDES THE FOLLOWING • 5 x 1/2" Drive Hex Bits - 7mm, 8mm, 10mm, 12mm and 14mm • 5x 1/2" Drive Torx Bits - T45, T50, T55, T60 and T70 • 5 x 1/2" Drive Triple square Spline Bits - M10, M12, M14, M16 (Tamperproof) and M18