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The coil (forged not molding) 108khz-50 for work in clays and loams buy in Astana

The coil (forged not molding) 108khz-50 for work in clays and loams

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Description

Coil or spiral drill. This tool is used to drilling in clays and loams. More rare in the breeds containing a small amount of gravel or very small pebble. The coil consists of a head with a cone-shaped carving, or a female thread and several spiral rounds terminating in the lower part in an edge.

The tool is deepened in breed at slow rotation with quite considerable effort to a face. At the same time the edge of a coil cuts off breed which on its rounds moves up. Vyburenny breed fills spiral blades, keeps on them and is taken on a surface together with the tool.

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