Special Features:

For holding sa type timing device and p (s)-a(d) pump coupling (10 mm and 12 mm wide grooves

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.