Part of the Kamasa cycle tools rangeMagnetic Torque Screwdriver 1-8Nm (accuracy +/- 10%) 1/4"D T-Bar and 6mm adaptor for use on Torque Screwdriver9 x 25mm bits manufactured from S2 steel: Hex: 3 | 4 | 5 | 6 | 8 | 10mm, Star T25 x 2, Phillips Ph2 Supplied in handy storage case Star is the equivalent of Torx* Torx* is the registered Trademark of Acument Global Technologies.