There are special devices for sharpening dull or broken drill bits If they are not at hand then try under a rotating drill bit set suitable abrasive (e.g. abrasive wheel) at an angle of 30 or 45 degrees — and the drill will self-sharpening.
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STOVE GARDENER
In rural homesteads, and in ordinary suburban houses, which in mother Russia today Nemer-unread, without any stove — Russian, Dutch or a simple "stove" — is hardly a cost, even if "we...
Circular saw made from a drill
In the household there is occasionally a need for longitudinal sawing of long boards into beams or battens, trimming chipboard (particle board) to size, or performing similar operations...
