Impaktor bit set contains the premium tritorsion bit holder with optional ringmagnet function to hold screws up to 10quot long also contains impaktor diamond anti cam out screwdriver bits stored in a slim amp compact easy open case for tool security amp easy bit selection specifically designed for cordless impact drivers these bits are suited to the heaviest duty jobs diamond coated for anti cam out the patented impaktor system is unrivalled in performance the tritorsion system mean