This simple device will help with the help of ordinary hand drills to cut holes of any diameter in the plywood, hardboard and particleboard.
Recommend to read
WITHOUT ALTERATION OF THE POWER SUPPLY
In Amateur radio practice, there are situations when 9-volt DC source you need to obtain 12, and then a higher output voltage. Bail in such cases can I designed a compact transformerless...
“MIRROR, MIRROR…”
I wonder whether someone from the research of sociologists on the importance of mirrors in women's lives? Indeed, since the introduction of mirrors to the present day they have for the...
