The Wera 05057690001 Bit-Check 30 Impaktor 1 is a 30-piece screwdriver bit set engineered for extreme demands, particularly suitable for use with impact drivers. Featuring Wera's Impaktor technology, these bits offer an above-average service life, even under high stress. The diamond coating on the bits ensures a secure fit in the screw head, significantly reducing cam-out forces and enhancing power transfer. This comprehensive set includes a variety of Phillips (PH), Pozidriv (PZ), Torx (TX), and Hex-Plus bits, along with an Impaktor holder with an annular magnet, all housed in a robust plastic box for easy transport and organization.