
A great tool for making holes in concrete, ceramics, brick is obtained from a carbide cutting plate lathe cutter, driven on the grinding wheel to the shape of a disk with a tapered cutting edge. Mandrel for mounting in the Chuck is machined from steel rod Ø 12 mm. Disc is mounted on the axial groove with the screw M5.
V. KNYAZEV, Leningrad
Recommend to read
THE “PATCHWORK” OF SUBMARINES
By the beginning of the First world war, all naval power was quite easy to divide the main with a significant naval power with diverse and numerous ships of all classes, and secondary,...
“ASIMMETRIK” COMES FIRST
"Unsportsmanlike! It is helpful to build models, not to bring equipment adult athletes! Not to allow for competition!" These indignant exclamations addressed to our children when they...