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Adjustable pipe tongs
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
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Brown tongs, английский
Long-handled, plierlike device similar to a certain type of blacksmith tongs used to handle wash or drill rods in place of a safety clamp in shallow borehole drilling. also called adjustable pipe tongs, extension tongs, lowering tongs.
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Brown tongs, английский
Long-handled, plierlike device similar to a certain type of blacksmith tongs used to handle wash or drill rods in place of a safety clamp in shallow borehole drilling. also called adjustable pipe tongs, extension tongs, lowering tongs.
Brace head, английский
A cross handle attached at the top of a column of drill rods by means of which the rods and attached bit are turned after each drop in chop-and-wash operations while sinking a borehole through overburden. also called brace key.
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