Robust Bit-Check 10 PZ Impaktor1. Bit-Check provides a quick overview of which tools are available for use. The bits that are not used are simply placed back in the holder and are never lost. Easy to carry, e.g. in a shirt pocket. Impaktor technology provides extra long life even in extreme conditions. Increased frictional resistance thanks to the coarse diamond particle coating on the bit tip prevents the tool from slipping out of the screw. Particularly suitable for use with conventional impact screwdrivers. Impaktor holder to soften extreme impacts. Excellent torsional effect thanks to the double torsion spring. With a ring magnet to easily hold long and heavy bolts, also ideal for work above head height. Particularly suitable for use with conventional impact screwdrivers. The magnet can be pushed back and deactivated.