3. Chrome- steel: These screw removers are made of Chrome- steel , which has high hardness, impact resistance, which is not easy to deform or rust, and has a long service life. 2. HEX SHANK: These screw extractors are equipped with hex shank, can be used with lithium drill, electric wrench, ratchet wrench, or socket, making them easy to install and operate. 4. DEEP SPIRAL TEXTURE: These broken screw extractors have deep spiral patterns, ensuring reliable tightening, preventing breakage and slipping, and greatly improving work efficiency. 1. MAIN PURPOSE: This extractor set is suitable for various damaged, broken, or stripped screws and bolts, with standard imperial specifications to stable and accurate operation. 5. WIDE APPLICATION: Including 25pcs screw extractors, with different specifications to meet various needs, widely used in pipeline processing, automotive maintenance, mechanical repair, etc., Manufacturer: Ounfhtrttk