Sealey Siegen TRX-Star/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 40pc Features: Chrome Vanadium steel bits hardened and tempered for added strength. Set includes 3/8" and 1/2"Sq drive to 10mm hex Chrome Vanadium steel bit adaptors. Supplied in storage case. Technical Details: • Part of the Siegen by Sealey range of quality tools at competitive prices. • Chrome Vanadium steel bits. • Hardened and tempered for added strength. • Set 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 (1 each 30 & 75mm), Hex Bits; 4, 5, 6, 7, 8, 10, 12mm (1 each 30 and 75mm), Spline Bits; M5, M6, M8, M10, M12 (1 each 30 and 75mm), Drive Adaptors; 3/8"Sq x 10mm Hex, 1/2"Sq x 10mm Hex. • Supplied in storage case. • Lifetime guarantee*. • Model no. S0982 • Model No. S0982 Additional Information: • Part of the Siegen by Sealey range of quality tools at competitive prices. • Chrome Vanadium steel bits. • Hardened and tempered