The Faithfull Precision Screwdriver Set contains a selection of 30 interchangeable screwdriver bits manufactured from S2 steel. The set includes a revolving instrument screwdriver handle for precise and accurate control, with a sure grip collar to aid one-handed use. Other features include a push-fit hex chuck for rapid bit changing. Supplied in a sturdy plastic storage case. Contains: 6 x Slotted Bits: 1.5, 2, 2.5, 3, 3.5 and 4mm 4 x Phillips Bits: 000, 00, 0 and 1 9 x TORX Bits: TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX15 and TX20 7 x Hex Bits: 0.9, 1.3, 1.5, 2, 2.5, 3 and 4mm 2 x Star (5) Bits: 0.8 and 1.2mm 1 x Tri Bit: 2mm 1 x Spanner Bit: U2.6mm 1 x Extension: 60mm 1 x Revolving Instrument Screwdriver Handle Specification: Handle Length: 110mm, 160mm with extension fitted