1. Clamp the outer circle with pliers and screw out. For general thread, screw out left and screw in right.
2. Use a flat shovel or a screwdriver to make the inner hole of the drill screw into a square shape that can block the wrench. Then unscrew it with a wrench.
3. Knock the flat shovel or screwdriver with a hammer to the right, make the cutting edge cut into the Socket head screws obliquely, and knock out.
4. Use a drill with a smaller bottom diameter than Socket head screws with a hand electric drill to drill out the Socket head screws, and then tap the thread from the bottom hole. If the screw-in end is not physical, just knock off the screw head, you can remove it. The screws must be useless. When you tighten the screws in the future, press the board to the bottom, and it will rotate when it is compacted. It will be bad again soon.
5. Use a drill with a deep hole diameter to drill out the hexagonal tail screw. After disassembling the abrasive tool, the screw will not be stressed. It can be easily removed with a vise.
6. If you have a lathe, use a lathe to turn it off, or place a screw on a wire hole smaller than a screw in the car and tighten it and then withdraw the screw to be removed. If the nut is leaking, it is better to do it. Use A pliers can be clamped and loosened. There are many ways to do it, depending on the tools at hand.
