For rotary or percussion drilling. Chrome vanadium steel shank with cobalt and tungsten carbide tip that withstands temperatures up to 1900 degrees Fahrenheit. Special negative back grinding enables tip to bore through applications such as masonry, ceramic tile, concrete, brick, fiberglass, plexiglass, cast metals, hardened steel, granite, marble, woods, and plastic with a filing action rather than a cutting action. No center punch required; eliminates walking and can be re-sharpened. NOTE: Not recommended for use on mild steel. This includes aluminum, angle iron, copper, galvanized pipe, brass and stainless steel.
- Multi-Purpose Drill Bit For Rotary or Percussion Drilling
- For use on Glass, Granite, Plexiglass, Marble, Ceramic Tile, Fiberglass, Cast Metal, Brick, Hardened Steel, Masonry, Soft Wood, Concrete, Hard Wood.
- Chrome vanadium steel shank for enormous strength and flexibility. Ideal for cordless drills, corded drills and drill presses.
- Flat bottom parabolic flute for faster waste removal. Special negative back grinding enables the tip to bore through materials with a filing action, not cutting.
- Outlasts regular carbide tipped bits. No center punch needed, eliminates walking. Resharpen on a high quality silicon carbide grinding wheel. Conforms to ANSI standards. Coolants: turpentine, light oil, water.