The RUKO family of cutting tools offered by AutomationDirect now includes a line of hole saws and accessories. The new bi-metal saws, in sizes ranging from 9/16in to 8.25in, feature up to 1.5in cutting depth and are available in two models. High-Speed Steel saws cut materials such as unalloyed steel, non-ferrous and light metals, plastics, plasterboard and light building boards, fiberboard, plywood and wood. Cobalt 8 saws, with fine cutting teeth, work well with metals such as alloyed and non-alloyed steels, high chromium alloyed steels, such as stainless steel, steels resistant to rust and acids, non-ferrous and light metals. Constructed with an alloyed steel 6135 jacket, the saws feature high rotational precision, positive chipping and cutting angles and good chip removal.