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Flat-spiral auger shoe
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
A flat-faced dry-sample-cutting device consisting of a short tube of which one-half of the bottom end is equipped with a short, flat, spiral web, tipped with a cutting edge. compare iwan auger shoe.
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Band brake, английский
- A flexible circular ribbon of steel lined with wooden blocks or asbestos-impregnated material that through a hand or mechanically actuated lever can be brought to bear on the surface of a projecting flange on a hoisting drum, capstan, or wheel and, through friction, control the rotation of the drum, capstan, or wheel.
- External band with friction lining, sometimes used as an additional parking brake, and as a change
Square-nose bit, английский
A flat-face bit.
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