Includes one each 1/8 inch, 3/16 inch, 1/4 inch, 5/16 inch and 3/8 inch Includes one each 1/8 inch, 3/16 inch, 1/4 inch, 5/16 inch and 3/8 inch for rotary or percussion hammer drilling. Chrome vanadium steel shank together with tungsten carbide and cobalt tip that is resharpenable and able to withstand drilling temperatures up to 2,000 degree Fahrenheit. No center punch needed. Use with cordless drills, corded drills and drill presses in applications on such as hard surfaces as masonry, ceramic tile, concrete, brick, glass, cast metals, hardened steel, granite and marble or soft surfaces such as woods, fiberglass, Plexiglas and plastics. Not recommended for use on mild steel, aluminum, angle iron, copper, galvanized pipe, brass and stainless steel.
Set includes 1 each: 1/8 in, 3/16 in, 1/4 in, 5/16 in, 3/8 in
For use on glass, plexiglass, ceramic tile, cast metal, hardened steel, soft wood, hard wood, granite, marble, fiberglass, brick, masonry, concrete and PVC
For rotary or percussion drilling
Ideal for use with cordless drills, corded drills, and drill presses
Flat-bottom parabolic flute removes waste faster for cleaner, quicker drilling
Special negative back grinding produces a filing action to bore through hard materials
Cobalt and tungsten carbide tips outlast regular carbide-tipped bits for extended service life
No center punch needed; design eliminates walking for accurate starts
Resharpen on a high-quality silicon carbide grinding wheel to extend tool life
