Working with a file always takes a lot of time, particularly where its course is restricted: in a deep hole, in a curved channel. Here come to the aid of a power drill. Hold its cartridge needle file with round cross-section or chip of a round file with machined shank: spiral cut works great not only during forward movement but also during the rotation. I. POPOV, p. Konosha, Arkhangelsk region.
Recommend to read
TWO AS ONE
If you have a few small flat brushes, and painting works took fleyts, you can do it yourself. Take two flat brushes, and connect them firmly clamped between two plates of plywood and...
HEIRS TO THE DESTROYERS
In the 60-ies of XX century the concept of the IUD in the hypothetical third world war Soviet and Western experts met in completely different ways. For example, admirals from the...
