The Wera 897/4 IMP R Impaktor bit holder with retaining ring and ring magnet. This Impaktor holder with retaining ring and magnet is designed to meet the extreme requirements when working with impact screwdrivers. The combination of a double torsion zone in the Impaktor holder and a torsion zone in the Impaktor bit results in a TriTorsion system. The powerful ring magnet securely holds large and heavy screws meaning that there is no need to hold the screw when using the tool great for overhead working situations and working in confined spaces. Also contains Impaktor Diamond anti cam-out screwdriver bits complemented by additional sizes from the high quality Wera bit range. Stored in a slim & compact easy open case for tool security & easy bit selection.