artu 01070 jobber drill bit, 1/2 in dia, 6-1/4 in oal, parabolic flute, 3/8 in dia shank, reduced 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 2000 deg F, 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
• 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

• Catalog https://assets.unilogcorp.com/187/ITEM/DOC/ARTU_100005898_Catalog.pdf