The Forney 20512 left hand drill bit set, fractional, 10-piece. Left hand twist screw machine length (stubby) drill bits and Forney 20860 through 20864 (#1 through #5) spiral screw extractors; plus free metal index. Forney Industries is one of Americas 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 youve got metal working questions, weve got answers. Were committed to your success regardless of location size or needs. Includes 1/16" (1.59mm) through 5/16" (7.94mm) by 64ths. Proof of purchase required. neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.