The one who often have to use a vise knows that the most difficult thing is to hold them a wedge-shaped or cone detail: when processing it loosened and slips out. However, if you apply a semi-cylindrical auxiliary plate, the problem will be solved: surface it is firmly pressed against the cheek of the wedge or cone, and its spherical surface are well dock with a sponge — holder in the vise will be reliable.
Recommend to read
A rat TRAP
The extermination of rats is usually done by three methods: biological, chemical and mechanical. The most common and effective among them is chemical. Sanitary-epidemiological station...
MOPED “COTTON GROWER”
X all-Union week of science, technology and production for children and youth, held in January 1983 in the Uzbek capital, has raised a lot of interesting developments from many cities of...
