Description of Uxcell Diamond Granite Fiberglass Ceramic Cutting Tools
Diamond coating maximizes performance and retains a sharper cutting edge than traditional carbide or bimetal hole saws. Nickel plating on these bits maximizes your tools life with great resistance to corrosion. Side holes allow for easy slug removal after drilling. Suitable for cutting accurate holes on glass, ceramics, porcelain, ceramic tile, porcelain tile etc. Not suitable for drilling tempered glass, plastic and wood. Please use at low drill speeds and drill pressure. Always work with coolant (water) when drilling. Not suited for use on concrete or for depths beyond about 1/2 inch.