Expert Quality, Draper TX - STAR® ; 1/4" bits manufactured from silicon steel hardened and tempered with shot blast finish. 1/4" square drive bit holder made from chrome vanadium steel hardened, tempered and chrome plated for corrosion protection. Display packed. Contents: 1 x bit holder 1/4" x 1/4" sq. drive, 6 x 30mm Draper TX - STAR® ; bits: T10, T15, T20, T25, T30, T40 Draper TX-STAR® ; products are compatible with †Torx fixing systems †Torx is the registered trademark of Acument Intellectual Properties LLC.