What if the screw cap has no edges or corners? This is a problem that many people often encounter when using a wrench to remove screws. In daily life, screw caps are often worn flat and difficult to disassemble due to prolonged use or rusting after being soaked in rainwater. So how to solve this problem?
Firstly, we can choose to use a professional screw extractor. This tool typically includes a specially designed screw drill bit that can squeeze the screw cap, causing it to bend and slowly loosen, making it easy for you to remove. The technique for using this tool is to first make a hole in the screw cap, then install the screw extractor on the drill, insert it into the hole, and rotate it slowly until the screw cap gradually loosens.
However, if you don't have suitable tools available, don't worry. We can also try the following tips:
Firstly, you can try spraying some lubricating oil. Using lubricating oil can help reduce friction and make screw caps easier to loosen. According to the instructions, spray lubricating oil around the screw cap to allow it to fully penetrate, and then use a wrench or other tool to try loosening the screw cap.
Secondly, if the screw cap is very tight, you can use a rubber band. Wrap the rubber band around the screw cap and tighten it with a wrench. Due to the high friction of the rubber band, it can make it easier for you to loosen the screw cap.
Thirdly, a metal hammer can be used to strike the screw cap. Before use, soak it slightly in warm water to make it easier to expand and loosen. Then, gently tap the screw cap with a metal hammer. Please pay attention to the force when striking each time to prevent greater damage.
Fourthly, if all the above methods fail, you can try carving a cross shape. Carving a cross on the screw cap with a knife or other tool can help you loosen the screw cap more easily. Just use with caution to avoid weakening the firmness of the screws.
No matter which method you use, please be careful and cautious. When attempting to loosen the screw cap, do not use excessive force to prevent further damage. If you are very unsure about your operation, it is best to seek professional help.
