Based on a 12mm parallel shank, this multi-stepped arbor may be used for the mounting of slitting saws with bore sizes of 16, 22 and 27mm with a maximum thickness of up to 6mm. Recommended maximum saw diameter is 100mm. The arbor may be mounted either into a standard collet chuck or any other suitable method of holding a parallel shank. On the parallel shank is a flat which ensures that if a grub screw is used to fix the shank in place it will not raise a burr and lock the arbor into the fitting. The unit is supplied complete with hexagon key.