42 piece bit set Comprising a driver, adaptor and a selection of 1/4" insert security bits. The Draper TX-STAR and hexagonal bits have a hole drilled in the bit to take the pin of the security fixing. The insert bits (25mm long) are manufactured from S2 steel hardened and sand blasted. Bit holder made from aluminium with chrome vanadium steel shaft. Packed in a handy plastic storage case. Contents: Driver with soft grip handle and 1/4" magnetic bit holder 1/4"(F) x 1/4"(M) magnetic bit holder 3 tri-winged bits size: No.1, 2 and 3 4 spanner bits size: No. 4, 6, 8 and 10 5 XZN spline bits size: M4, M5, M6, M8 and M10mm 4 square bits: S0, S1, S2 and S3 6 metric hexagonal security bits size: 2.0, 2.5, 3.0, 4.0, 5.0 and 6.0mm 6 imperial hexagonal security bits size: 5/32, 9/64, 1/8, 7/64, 3/32 and 5/64"Ê 3 Draper TX-STAR bits: T5, T6 and T7 9 Draper TX-STAR security bits: T8, T9, T10, T15, T20, T25, T27, T30 and T40 PZ TYPE products are compatible with Pozidriv®/Supadriv® fixing systems Draper TX-STAR products and security bits are compatible with Torx fixing systems