ARTU 01075 Jobber Bit Drill Bit, Parabolic Flute, 3-1/8 in L Flute, Reduced Shank, 3-1/8 in L Shank

For rotary or percussion drilling. Chrome vanadium steel shank with tungsten carbide/cobalt tip that is resharpenable, and able to withstand drilling temperatures up to 2,000 degrees Fahrenheit; no center punch needed. Use with cordless drills, corded drills and drill presses in applications such as masonry, ceramic tile, concrete, brick, fiberglass, plexiglass, glass, cast metals, hardened steel, granite, marble, woods, plastics. Not recommended for use on mild steel. This includes aluminum, angle iron, copper, galvanized pipe, brass and stainless steel.Chrome vanadium steel shank for enormous strength and flexibility

Chrome vanadium steel shank for enormous strength and flexibility

Requires no center punch and eliminates walking

The blend and high tech bonding of cobalt and tungsten carbide allows bit to withstand temperatures up to 2000 deg F

Special negative back grinding enables the tip to bore through materials with a filing action, not cutting

Resharpens on a high-quality silicon carbide grinding wheel

Uses standard coolants such as turpentine, light oil, water

Flat bottom parabolic flute for faster waste removal