Our hole drills are used in concrete,metal,plastic,glass and marble.
M42 bimetal hole drills ,full-grinded high-speed steel hole drills and hard alloy hole drills can drill on metal materials,synthetic steel plates, aluminum plates,plastics and resin plates, within drilling hole diameter 12mm-220mm and single side drilling hole depth 38mm.

These products are widely used in industries such as electric switch cabinets,decorating security doors, ship building, environmental protection equipment, mechanical engineering, boiler manufacturing, fire annihiator pipe installation, oil feed pipe,etc.