Artu - 9/16In x 6-1/4In Multi-Purpose Drill Bit

Product description

• 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.