ARTU The Original 01505 Drill Bit Set, Multi-Purpose, 5-Piece, Cobalt/Tungsten Carbide

For rotary or percussion drilling. Chrome vanadium steel shank, diamond ground tip, special negative back grinding enables tip to bore through brick, concrete, masonry, ceramic tile, fiberglass, plexiglass, glass, cast metals, hardened steel, granite, marble, woods and plastic with a filing action. High-tech bonding allows bit to withstand drilling temperatures up to 2000 deg F. easy-to-resharpen. Includes one 1/8 in, 3/16 in, 1/4 in, 5/16 in and 3/8 in and plastic case. NOTE: Not recommended for use on mild steel. This includes aluminum, angle iron, copper, galvanized pipe, brass and stainless steel. Packaged in a plastic case.

Made of cobalt/tungsten carbide, with includes 1/8 in 3/16 in 1/4 in 5/16 in and 3/8 in Bits, specifications For Use on Glass Plexiglass Ceramic Tile Cast Metal Hardened Steel Softwood Hardwood Granite Marble Fiberglass Brick Masonry Concrete and PVC, type Multi-Purpose.

Application

For rotary or percussion drilling

• Chrome vanadium steel shank for enormous strength and flexibility
• Works ideally for cordless drills, corded drills and drill presses
• Outlasts regular carbide tipped bits
• Requires no center punch and eliminates walking
• Resharpens on a high-quality silicon carbide grinding wheel
• Use with all Diablo 5 in SandNet™ discs
• Flat bottom parabolic flute for faster waste removal
• Special ribs under the head countersink into material for flush seating
• The material is rendered from the hearty shin bone of Zebu cattle, a substance tough enough for the rigors of case knife demands