Special Features:

In accordance with u.S. Army edgewood arsenal drawing number c81-1-9726, revision a, dated january 27, 1976

Properties:

A tool on which are located one or more pins, lugs, holes, keyways, or hooks, designed to engage matching holes, slots, or projections on a coupling, nut, or the like; for exerting a torsional force, concentrated at a point or points of a mating part, tending to turn the mating part about an axis. The drive end may have a hole for a separate straight bar used as a handle. Excludes wrench, bung.