AK21974P TRX-Star*/Security TRX-Star*/Hex/Ribe/Spline Bit Set 74pc - SealeyPlatinum series. High quality S2 steel bits with a zinc phosphate finish, each size in 30 and 75mm lengths. Hardened (58-62 HRC) and tempered for added strength. Includes 3/8" and 1/2"Sq drive to 10mm hex Chrome Vanadium steel bit adaptors. Supplied in robust storage case with inclined tray for quick and easy bit selection. Platinum series. High quality S2 steel bits with a zinc phosphate finish, each size in 30 and 75mm lengths. Hardened (58-62 HRC) and tempered for added strength. Includes 3/8" and 1/2"Sq drive to 10mm hex Chrome Vanadium steel bit adaptors. Contents: TRX-Star* Bits T20, T25, T30, T40, T45, T50, T55, T60 (1 each 30 & 75mm), Security TRX-Star* Bits T20H, T25H, T30H, T40H, T45H, T50H, T55H, T60H (1 each 30 & 75mm), Hex Bits 4, 5, 6, 7, 8, 10, 12mm (1 each 30 & 75mm), Ribe Bits M5, M6, M7, M8, M9, M10, M12, M14 (1 each 30 & 75mm), Spline Bits M5, M6, M8, M10, M12 (1 each 30 & 75mm), Drive Adaptors 3/8"Sq x 10mm Hex, 1/2"Sq x 10mm Hex. Supplied in robust storage case