ARTU 01540 Drill Bit Set, Multi-Purpose, 6-Piece, Chrome Vanadium Steel/Cobalt/Tungsten Carbide

ARTU Drill Bit Set, Multi-Purpose, Chrome Vanadium Steel/Cobalt/Tungsten Carbide, 6 Piece, Includes: 1/8 in, 5/32 in, 3/16 in, 1/4 in, 5/16 in, 3/8 in Bits For rotary or percussion drilling Features: - 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 eliminates walking - Resharpens on a high-quality silicon carbide grinding wheel - Uses standard coolants like turpentine, light oil, water - Flat bottom parabolic flute for faster waste removal - Special negative back grinding enables the tip to bore through materials with a filing action, not cutting - The blend and high tech bonding of cobalt and tungsten carbide allows bit to withstand temperatures up to 2000 deg F