Carbide Tipped Drill Bits

KnKut Carbide Tipped Drill Bits are purpose-built for hardened steel — the material that stops standard HSS and cobalt bits cold. With a carbide tip rated for 48–65 Rockwell C hardness, these bits cut through hardened bolts, broken studs, snapped easy-outs, die sections, brake drums, and exotic metals without annealing the workpiece. Available in standard and left-hand versions; the left-hand variants combine carbide toughness with reverse-rotation extraction, making them the go-to when a broken fastener is too hard for a conventional extractor. Fractional sizes from 1/8" to 1/2". The tool mechanics, machinists, and fabricators reach for when nothing else will cut it. Made in USA.

Want the full kit? See our Carbide Tipped Drill Bit Sets. For stainless and titanium rather than hardened steel, compare our M35 Cobalt Drill Bits.