Au'ger, n.
n. [D. aregaar, egger, effer, A-S. nafe-gar, nafogar, nafebore, O. H. Ger. nabager, N. H. Ger. näber, Icel. nafar, from A-S. nafa, nafu, the nave of a wheel, and gar, a dart or javelin, properly and originally a nave-bore.]
- A carpenter's instrument for boring holes, chiefly in wood. It consists of a long shank or axis having a cutting edge at one end, and usually a handle placed crosswise at the other, by which it is turned with both hands. A pod-auger is one with a straight channel or groove, like the half of a bean-pod. A screw-auger has a twisted blade, by the spiral groove of which the chips are discharged.
- An instrument for boring or perforating soils or rocks, consisting of a handle for working, a rod which may be lengthened as the perforation extends, and a bit, mouth, or cutting piece, resembling the bit of a common auger, for soils or soft rocks, and a chisel for harder rocks. Brande. Ure.
