For Phillips, Pozidriv, hexagonal, TORX, TORX tamper, Robertson and slotted head screws | The torsion zone absorbs torque peaks and makes the bits more wear-resistant against sudden impacts (in hard materials or when using an impact driver), preventing the tip from breaking prematurely and improving service life | Tough, hard and durable glass fibre reinforced box for good protection of the contents | A sticker is supplied inside the set to personalise it and identify it as yours Includes 54 pieces: 53 impact bits + 1 magnetic impact bit holder | High-performance alloy steel | The patented case has a 180° locking function: the case stays open even when turned [up to 500 g of added weight] without closing on the fingers. | Supplied in a cardboard sleeve TORX bits have a coloured sleeve to easily identify the tip size | Manganese phosphated finish | The lid and body of the case can be separated to organise it flexibly in the trolley drawer or in the toolbox Developed for use with impact drivers and suitable for applications in hard materials | 1/4" hexagon DIN 3126 and ISO 1173, style C 6.3 | The case is designed to be stacked on top of each other without slipping, when several sets are used Designed for long-duration work, the torsion zone can effectively distribute the concentration of force | 75 mm magnetic bit holder with lock-in locking system (style E 6.3) | The swivelling racks make it possible to optimise space and easily access the drill bits