About this item 【COMPLETE 22-PIECE EXTRACTION KIT】 This all-in-one set includes 5 multi-spline extractors (1/8"-5/16”), 7 spiral screw extractors (#1-#5), 7 left-hand cobalt drill bits, and 3 essential hex adapters (1/4”, 1/4”to3/8”, 3/8”to1/2”). A professional solution for any broken fastener removal job. 【SMART LEFT-HAND DRILL BIT TECHNOLOGY】 The 7 titanium-coated cobalt drill bits have LEFT-HAND flutes. When used in reverse, they often spin out the broken fastener while drilling the pilot hole, combining two steps into one for faster, more efficient removal. 【DUAL-EXTRACTOR SYSTEM FOR ANY SCENARIO】 Spiral extractors handle common broken screws with ease. Multi-spline extractors, made of hardened Cr-Mo steel, deliver higher torque for stubborn, partially exposed fasteners in tight spaces. The right tool for every level of damage. 【UNIVERSAL ADAPTERS FOR MAXIMUM COMPATIBILITY】 Includes 3 adapters (1/4”, 1/4”to3/8”, 3/8”to1/2”), allowing you to use these extractors with any standard drive tool—from compact hand drivers to heavy-duty 1/2” impact wrenches. One kit fits all your tools. 【PROFESSIONAL-GRADE DURABILITY & SUPPORT】 Extractors are forged from tough Chrome Molybdenum steel; drill bits are HSS cobalt for long-lasting sharpness. This set is built for real-world use. Backed by YEKEPRO’s commitment to customer satisfaction and reliable support. Overview Material: High-Speed Steel (HSS) with Cobalt Coating Finish Type: Titanium Shank Type: Straight Brand: YEKEPRO Tool Flute Type: Spiral