Hole Saws - Carbide Tipped CT

Starrett CT carbide-tipped hole saws use tungsten carbide teeth for greatly extended tool life in hard, abrasive or nail-embedded materials that would quickly blunt a standard bi-metal hole saw. Typical jobs include cutting through render, cement board, tiled surfaces and reclaimed or nail-embedded timber, where an ordinary hole saw would lose its edge after a few holes. The range covers diameters from 16mm to 152mm for trade and industrial use, from small pipe holes up to larger openings for ventilation and services. How to choose: if your material is abrasive, or may contain hidden nails and screws, choose a carbide-tipped hole saw. For extra depth in thick or abrasive materials, see the CTD deep-cut range; for mixed work across wood, plastic and thin metal, the MPH multi-purpose range is designed to avoid tool changes. Usage tips: run carbide-tipped hole saws at a steady, moderate speed and do not let the teeth bounce on hard surfaces when starting the cut, as this can chip the carbide. Will a carbide hole saw cut through nails? The CT range is a strong choice for reclaimed and nail-embedded timber, where carbide teeth resist the damage that blunts a bi-metal edge. Can I use a CT hole saw on tiles? The CT range is suited to tiled surfaces; start the cut slowly so the teeth do not skid on the glaze.