Expert Quality bit set with 10mm hexagon bits manufactured from silicon steel hardened, tempered with shot blast finish. 1/2" square drive bit holder made from chrome vanadium steel hardened, tempered and chrome plated. Packed in blow mould case and display sleeve. Contents: • bit holder 10mm hexagon x 1/2" sq. drive • 7 Draper TX-STAR insert bits 30mm long size: T20, T25, T30, T40, T45, T50 and T55 • 7 Draper TX-STAR insert bits 75mm long size: T20, T25, T30, T40, T45, T50 and T55.