Item Details: and high quality High-hardness bearing steel, sturdy and durable, quick take-off broken screw Sitellite head design, easy to hold, used for: clamping ratchet wrench, multi-function wrench, twisting hand, easy to force Applicable to: water pipe breakage, Triple-cornered valve, broken head screw, etc., emergency repair and work The of using the broken screw extractor: 1. Select a drill bit is thinner than the broken screw and drill a hole at the break . 2. Select a picker with the appropriate hole size, put it into the hole, and rotate it with the wrench. 3. the extractor to rotate counterclockwise into the broken nail until the broken nail is completely unscrewed. How to the water pipe broken screw extractor: 1. Measure the diameter of the broken of the water pipe 2. Screw in the corresponding size extractor and turn it counterclockwise with a wrench 3. The matching wrench rotates counterclockwise until the broken screw is removed Material: steel color:silver + black Extractor: 1/2 inch 1/2 inch Pipe diameter:15mm;(pipe diameter refers to the internal diameter) Types: 1/2 inch Repair Screw Tap Package Contents: 1 * Repair Screw Tap 1 * Screw Extractor Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.