The wera 05769 impaktor bit system has been designed for use with all cordless impact drivers even the most powerful 18 volt 24 volt models boasting 180nm torque with a combination of high quality steel custom hardening precise tip profiling anti slip diamond coating and the unique tri torsion system allow up to 10x longer life than any other bit system impaktor bits are ideal for any heavy duty applications or impact driver use and the diamond coating prevents cam out allowing easier fast