The 35-piece set of extra-hard screwdriver bits is a good choice for general work. Complete set with accessories for essential drilling and screwing jobs Screwdriver bits made of S2-modified steel, optimised heat treatment process, above-average hardness, strong performance The conical torsion zone of the bits handles torque peaks well as it absorbs forces and vibrations during screwing. All bits are colour-coded for quick overview and identification of the correct bit type. In addition, the set contains precision-machined drill bits made of HSS steel for high drilling rates in metal and plastic. They have an outer hexagonal shank size 1/4-inch for screwdrivers and drill screwdrivers. In addition, the set contains precision-machined drill bits made of HSS steel for high drilling rates in metal and plastic. It has a 1/4-inch outer hexagonal shank for general screwdriving work with screwdrivers and drill screwdrivers. The 35-piece set of Extra Hard screwdriver bits is presented in a practical and robust dust box that allows both good overview and safe storage and transport. The set contains: PH1, PH2, PH3 PZ1, PZ2, PZ3 S 3/4/5/6 H3, H4, H5, H6 T10, T15, T20 (2x), T25, T27, T30, T40 Socket spanner 8/10/13 mm HSS-G 2.5/3.0/3.5/4.0/5.0/6.0 mm Bits with double blade PH2/PZ2 Bits with double blade Th20/Th25 The set consists of bits of different lengths and types for different types of screws and sockets for hexagon screws. Also included is a universal magnetic holder and a universal holder with quick-change function. Length mm: 25; 25; 25; 25; 50; 70; 74; 83; 88; 99; 105; 60; 60