Very often, a broken drill should just throw it away because of the inability to even re-ground it. However, it can be converted into a punch. It is enough to the breaking point to make the angle marked in the figure. For such an operation better suited for the drill of large diameter. This punch will make it easier to obtain holes in concrete. Slightly after each hammer blow, the punch should be slightly rotated around the axis.
L. ANDARALO, M and n s K, Belarus
Recommend to read
AND THE DOOR — LIKE NEW!
This is a rare "phenomenon" can not be called: stops normally to close the door. If a bit has settled in the loops — it is easily fixable. It is enough to enclose under it a sheet of...
KAYAK — UNDER THE ROOF
Lightweight foam Mat that tourists usually take to sleeping in a tent can serve as a roof of a canopy for kayaks, covering travelers from the hot sun or rain. The rug is hung on wire...
