To permit sheet metal, need metal shears and a line with the Scriber for drawing cut lines. And if you can see the curved workpiece? Use the bolt or stud of suitable length, as shown in the figure, the nut will trace the edge, and the end of the stud resting in a scissors — to control the direction of the cut.
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COMPASS — DRILL ASSISTANT
If you need to drill through wall, out the other side exactly in the right place — use...a compass. Of course, in collaboration with the magnet, which should be put behind the wall...
ON THE TABLE IS… MACHINE
At first, like most beginning hams, mounting holes in printed circuit boards, I drilled using a universal tool — drill. But as it turned out, to produce a small hole (diameter less than...