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Any is, perhaps, too, but the hole in the tree Ø 20-55 mm this tool to drill. Drill-Perca consists of a Central rod of square section and two blades, pivotally attached to the rod. Sami knives carved from overage mills.

Reground the blade plane for beginners is sheer torture. Not so just manually set the correct angle between the sand around and a piece of iron and withstand this angle throughout the sharpening process. Vladimir Voskresenskiy made for such cases a simple device for sharpening. To the T-shaped rack he welded the bushing and installed Read more…

Before bending the steel pipe, it is necessary to fill calcined, sifted through a fine mesh sand, and the ends to drown out the wooden plugs. In the circle of carting the Moscow Palace of pioneers and pupils named after N. K. Krupskaya children very often had to bend the pipes for frames of go Read more…

We offer you a simplified method of manufacturing a cylindrical gear rack. It can be done with a conventional tap, picking up the thread profile in accordance with your existing gear. Before working make a simple mandrel is a steel bar with a hole, which is inserted into the tap. The tap should be to Read more…

The simplest collet was developed by the students in the CPC Leninsky district of the city of Alma-ATA. It can be used quickly and reliably to clamp cylindrical parts, shafts, axles, bushings. The fixture base is a steel flange, the flat end of which drilled four holes, through which the clip is bolted to the Read more…

When the problem occurs clean from rust or scale, of small-diameter pipes, the question naturally arises — how can this be done? We advise you to make a simple centrifugal purifier. Device it is. The two flanges are tightened by four threaded studs. On each is placed a few gears — holes in them is Read more…