The Wera 855/1 IMP DC Pozidriv (PZ) Impaktor Screwdriver Bits are designed for demanding screwdriving applications using high-torque power tools and impact drivers. Featuring Wera Impaktor technology, these bits are engineered to withstand high loads and provide an extended service life. The diamond-coated tip helps improve grip in the screw head, reducing slipping and cam-out while lowering the contact pressure required during operation. With a 1/4" hexagonal drive, these bits are suitable for compatible bit holders and power tools in professional industrial and assembly environments.