The hole in the metal plate can be obtained without drill: it is enough to bend it and work a round file or a needle file. This technique is especially useful when you want an oval hole. It is applicable for punching a rectangular window or a narrow slit: in this case, use is not round, but flat needle file or hacksaw.
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CLAMP AND STAND
If you cut the old metal pipe of large diameter to be sawn along, and then riveted with their convex sides to each other, get both and convenient stand for pens, brushes, pens, and...
TO HAMMER WITHOUT A HAMMER
In an awkward place where there is no opportunity to even swing a little hammer, "hammer" a nail with the help of the clamps: it will simply push, and on the hat, no worse than a hammer.
