About this item PROFESSIONAL-GRADE EXTRACTION POWER: Engineered to effectively remove broken, stripped, seized, or damaged studs, bolts, socket screws, and fittings that standard tools fail on. Your reliable solution for stubborn fastener problems in any workshop or garage LEFT-HAND SPIRAL DESIGN FOR MAXIMUM GRIP: Features a reverse spiral flute that bites deeper into the damaged fastener as you turn counter-clockwise. This design provides superior gripping power, reduces slippage, and dramatically increases successful removal rates 5-SIZE KIT FOR COMPLETE VERSATILITY: This comprehensive set includes five extractors covering : 1/8"-1/4”, 1/4"-5/16”, 5/16"-7/16”, 7/16"-9/16”, and 9/16"-3/4” DURABLE HARDENED STEEL CONSTRUCTION: Manufactured from tough, heat-treated steel to withstand high torque and resist wear. Built for repeated use in demanding conditions without breaking or deforming, ensuring long-term tool reliability SIMPLE USER-FRIENDLY OPERATION: Easy to use with standard tools. Just drill a pilot hole (if needed), tap the extractor firmly into the fastener, and turn counter-clockwise with a wrench or tap handle. Saves time, money, and frustration on repair projects Overview Material: Hardened Steel Shank Type: Straight Brand: YEKEPRO Tool Flute Type: Spiral Surface Recommendation: Concrete, Metal, Stone