Here is an article on how to remove copper pipe end caps from a house without using any tools:
(How To Remove Copper Pipe End Cap)
If you have pipe end caps on your home, there are a few things you can do to remove them without needing to use any tools. One way to do this is to sand away the oxide on the ends of the pipe. The oxide will protect the pipes from water and rust over time.
There are several ways to sand away the oxide on copper pipe end caps. One common method is to use a tool such as a or hammer. Start by the surface of the pipe, starting at the bottom and working your way up. You can add a light touch of sandpaper if needed, but be careful not to use too much pressure on the ends. As you work, gently apply the sandpaper to the oxide, moving it in a circular motion until all the oxide has been removed.
Another method is to use a high-powered electric drill. This type of drill can be used to cut away the oxide from the end cap without using any tools. Start by inserting the drill into the pipe end cap and working your way around it. Use gentle power to drill until all the oxide has been removed. If the depth of the drill is not enough, you may need to re drill until you achieve the desired depth.
(How To Remove Copper Pipe End Cap)
Regardless of which method you choose, be sure to follow proper safety precautions when working with copper and other metals. Wear gloves, goggles, and protective glasses when working with high-pressure equipment. Also, make sure to clean the drill after each use and avoid leaving it in the water or dust for long periods of time.