The Forney 20481 left hand drill bit, 1/16" Industrial Pro high speed steel (HSS) fractional left hand twist screw machine length (stubby) drill bit with bright finish and 118-degree split point. Ideal for drilling out and removing broken studs, bolts and screws. Using a left hand drill bit for removal eliminates tightening or spinning the work deeper. Many times, the left hand drill bit will spin the broken piece out without having to use a screw extractor. Requires a reversing drill. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm & ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. Were committed to your success regardless of location size or needs. 1/16-inch (1.59mm) drill bit. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.