High-hardness bearing steel, sturdy and , quick take-off broken screw. Sitellite 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 screw, etc., emergency repair and work use. The of using the broken screw extractor: Select a drill bit that is thinner than the broken screw and drill a hole at the break point. Select a picker with the appropriate hole size, put it into the hole, and rotate it with the wrench. Use the extractor to rotate counterclockwise into the broken nail until the broken nail is completely unscrewed. How to use the water pipe broken screw extractor: Measure the diameter of the broken bolt of the water pipe Screw in the corresponding size extractor and turn it counterclockwise with a wrench The matching wrench rotates counterclockwise until the broken screw is removed Extractor:3/4 inch , 3/4 inch Pipe Diameter:20mm(pipe diameter refers to the internal diameter) Types: 3/4 inch Repair Screw Tap Colour: silver + black Material: metal Package Contents: 1 * 6 Repair Screw Tap 1 * 8# Screw Extractor 1 * 4 Repair Screw Tap 1 * 7# Screw Extractor 1 * Raw material tape(random color, don't accept the specified color) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.