Accueil > Term: brace head
brace head
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.
- Partie du discours : noun
- Secteur d’activité/Domaine : Mines
- Catégorie : Exploitation minière; Mineral mining
- Government Agency: USBM
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Créateur
- ed.young
-
(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
