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
HOUSING BLOCKS OF
Sectional block method of construction of the larger vessels have proven their effectiveness. It will be useful to modelers. Normally, the body size wikiepedia on the disc, is assembled...
CLOSET ON THE BELT
If outerwear is wider than the internal space of the closet and constantly trapped when closing the doors — fasten them removable shoulder strap: it will squeeze the clothes and the door...
