ARTU 01150 Jobber Drill Bit, 1/4 in Dia, 16 in OAL, Parabolic Flute, Straight Shank

For rotary or percussion drilling. Chrome vanadium steel shank with cobalt and tungsten carbide tip that withstands temperatures up to 1900 deg F. Special negative back grinding enables tip to bore through applications such as masonry, ceramic tile, concrete, brick, fiberglass, plexiglass, cast metals, hardened steel, granite, marble, woods and plastic with a filing action rather than a cutting action. No center punch required, eliminates walking and can be re-sharpened. This includes aluminum, angle iron, copper, galvanized pipe, brass and stainless steel.

Made of chrome vanadium steel with a black oxide finish, measuring 1/4 in in diameter, with applicable materials Cast Metal Ceramic Fiberglass Glass Granite Hardened Steel Hardwood Marble Masonry Plexiglas PVC Softwood, cutting edge material Cobalt/Tungsten Carbide, flute length 11-5/8 in.

Application

For rotary or percussion drilling

• Chrome vanadium steel shank for enormous strength and flexibility
• Outlasts regular carbide-tipped bits
• Requires no center punch and eliminates walking
• Resharpens on a high-quality silicon carbide grinding wheel
• Uses standard coolants such as turpentine, light oil, water