The Wera 05073980001 Bit-Check 10 Impaktor 1 SB is a 10-piece bit set featuring Impaktor technology, specifically designed for use with impact drivers and other high-torque applications. This set includes nine Impaktor bits for Phillips (PH), Pozidriv (PZ), and Torx (TX) screws, along with one Impaktor holder with a retaining ring and magnet for secure bit seating. The Impaktor technology ensures an above-average service life, even under extreme conditions, thanks to a special material composition and optimized geometry. The bits are suitable for heavy-duty use in industrial and trade applications. The compact Bit-Check design allows for easy transport and quick access to the bits.