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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,[...]