Ring wrench has castellated edge presented to castellated ring adapter with internal profile for removal of worn bolts

摘要

A ring wrench has a shank (10) with a castellated (13) ring which is presented to a second castellated (22) adapter ring (20). The second ring (20) has an essentially hexagonal inner profile with a series of axial ridges and detents which fit around the worn head (41) of a hexagonal bolt (40).