Construction and mounting the nail dowel for fixing metal structures to concrete made from hardened steel. If you release hardened on the fire and sharpen the head a certain way, and then tempering it — get a perfect tool to the drill for figured wood and soft metals. L. MOROZOV, G. Samara
Recommend to read
HACKSAW-“THE DENTIST”
If the saw teeth from long term use it had lost its sharpness and shape, it can be corrected with a file of triangular cross-section or a suitable needle file. But you first need a...
MICROPHONE OUT OF SCRAP MATERIALS
It is not difficult to do even the novice hobbyist. And materials needed for this available. The basis of design — a primer of domestic microphone MD-47. The device consists of a...
