This Bahco Professional 54 Piece Assorted Standard & Long Screwdriver Bits & Holders set (Model: 59/S54BC) is a universal screwdriver set designed by Bahco. It covers a wide spectrum of drives and lengths, enabling multiple jobs to be completed with ease. The screwdriver bits come with colour coding for easy identification, making them the perfect set for cordless drill drivers, screwdrivers etc. The set includes seven styles in three different lengths. Bits included are 25mm in length: Slot 4.5mm, 5.5mm; Philiips: PH1, PH2 x 4, PH3, PH2G x 2; Pozi-Drive: PZ1, PZ2 x 4, PZ3; Torx: Tx10 x 2, Tx15 x 2, Tx20 x 4, Tx25 x 2, Tx27, Tx30 x 4, Tx40; Torx Tamperproof: TR10, TR15, TR20, TR25, TR30; Hex: HEX3, HEX4, HEX5, HEX6, HEX8; Robertson Square Drive: R1, R2. Bits 125mm in length include: Phillips: PH1, PH2; Pozi-Drive: PZ1, PZ2. Bits 150mm in length include: Torx: T20, T25, T30. The set also includes a 1/4” quick release magnetic bit holder and a 1/4” standard magnetic bit holder, all supplied in a sturdy Bahco storage case.