Left Hand Drill Bits

KnKut Left Hand Drill Bits are built for one of the most frustrating jobs in the shop: removing broken bolts, snapped studs, and seized fasteners. The reverse-cut flutes spin counter-clockwise, so as the bit bites into the broken piece, the rotation often backs it out on its own — no screw extractor needed. Made from high-vanadium HSS with a salt nitride treatment for hardness and corrosion resistance, these bits hold an edge in tough materials, including stainless steel and titanium. Available in fractional sizes in both jobber length and short stubby for tight-access work. A staple for auto mechanics, body shops, and fabricators dealing with rusted or stripped fasteners. USA-made.

Buying for a full size range? Grab the matching Left Hand Drill Bit Sets. When the broken stud is hardened steel, step up to Carbide Tipped Drill Bits.