Features Excellent Wear Resistance: Made of high hardness high speed steel, can be used to remove peeled, broken, stuck or damaged screws Strong Practicality: Suitable for hex socket bolts, square head screws, wood screws, hex head screws, machine screws, sheet metal screws and other screws High Efficiency: Suitable for drill bits and screws or bolts, the full size easy to pull bolt extractor set can meet almost all your needs Thoughtful Design: All stuck screws bolts can be removed in a few seconds just two steps, packaged in a storage kit to ensure you don’t lose one Portable Structure: You can take it with you for home, telecommunications, car or mechanical maintenance work Specification: Item Type: Damaged Screw Extractor Material: High Speed Steel Purpose: Broken Screw Extractor Color: Silver Screw Extractor Model: Dr01, Dr02, Dr03, Dr04, Dr05, Dr06, Dr07, Dr08, Dr09, Dr10 Ex01, Ex02,, Ex03, Ex04, Ex05, Ex06, Ex07, Ex08, Ex09, Ex10 Package List: 20 x Damaged Screw Extractor 1 x Magnetic Extension Knife Holder 1 x Socket Adapter Note: 1. When the exterior of the broken screw is glossy, it must be drilled first. Otherwise the drill bit will slip. 2. When drilling, it must be vertical and low speed. Use this drill in the reverse direction, the first hole drilled deeper is easier to take out. 3. It is best to use a hand electric drill, not the hammer drill mode. Be sure to use a low speed. Package List 20 x Damaged Screw Extractor 1 x Magnetic Extension Knife Holder 1 x Socket Adapter