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 material is rendered from the hearty shin bone of Zebu cattle, a substance tough enough for the rigors of case knife demands
• Special ribs under the head countersink into material for flush seating
• Resharpens on a high-quality silicon carbide grinding wheel
• Use with hose clamp or ferrule
• Flat bottom parabolic flute for faster waste removal