Durable multi-purpose 9/32-In x 4-3/8-In drill bit engineered for rotary and percussion use. Tungsten carbide body with a cobalt-tipped point and chrome vanadium steel shank delivers strength, flexibility, and reliable performance in cordless drills, corded drills, drill presses, and impact drivers. The flat-bottom parabolic flute clears debris quickly, while special negative back grinding enables a filing action for efficient boring and reduced walking. Suitable for glass, granite, plexiglass, marble, ceramic tile, fiberglass, cast metal, brick, hardened steel, masonry, concrete, and both soft and hard wood. Resharpenable on a high-quality silicon carbide grinding wheel to extend service life.
Designed for both rotary and percussion drilling for versatile jobsite use
Works on glass, granite, plexiglass, marble, ceramic tile, fiberglass, cast metal, brick, hardened steel, masonry, concrete, and wood
Chrome vanadium steel shank provides strength and flexibility under load
Compatible with cordless drills, corded drills, and drill presses for flexible use
Flat-bottom parabolic flute accelerates waste removal for faster drilling
Special negative back grinding lets the tip bore with a filing action rather than cutting for improved performance
Outlasts regular carbide-tipped bits for longer service life
No center punch needed, eliminating walking for accurate hole starts
Resharpen on a high-quality silicon carbide grinding wheel to restore cutting performance
