The Bosch PRO 33 Piece Impact Screwdriver Bit Set is a comprehensive professional bit set designed for heavy-duty screwdriving with impact drivers and drill drivers. Rated up to 50x more robust than a standard Bosch Extra Hard bit, it's built to handle the demands of intensive daily use on site. Each bit is manufactured from heat-treated modified steel, giving them exceptional strength and resistance to high torque. An extended torsion zone absorbs stress at the tip of the bit, preventing breakage under load — making these ideal for installers, electricians, and contractors working with power tools at sustained torque levels. Identifying the right bit is straightforward, thanks to colour-coded rings indicating head type and laser markings showing size. The 1/4" hex shank is impact-rated for use in both impact drivers and drill drivers. The set is housed in a Pick and Click box-in-box case, with holders designed to allow you to build your own custom toolbox configuration. Features and Benefits: • Up to 50x more robust than a standard Bosch Extra Hard bit • Extended torsion zone absorbs torque stress at the tip to prevent bit breakage • Heat-treated modified steel construction for high-torque resistance • 1/4" impact-rated hex shank compatible with impact drivers and drill drivers • Colour-coded rings and laser size markings for fast bit identification • Pick and Click modular case with removable holders for custom toolbox organisation Specifications: Net Weight: 0.540 kg Contents: 25 mm Screwdriver Bits: PH1; PH2 (x2); PZ2 (x2); PZ3; T10; T15; T20 (x3); T25 (x2); T30; H5; SL5.5 55 mm Screwdriver Bits: PH2 (x2); PZ2 (x2); T15; T20 (x3); T25 (x2); T30; R2 50 mm Nutsetters: 8 mm; 10 mm; 13 mm 60 mm Bit Holder: Quick Change Bit Holder 65 mm Drive Guide: Drive Guide Case: Pick and Click box-in-box