Cam key with hexagonal extension for use on internal cams has body with milled grooves can be fitted by hexagon to standard hexagon sets for screwing or unscrewing

摘要

The cam key with hexagonal extension for use on internal cams has a body (1) with milled grooves (2), and can be fitted by its hexagon to standard hexagon sets in the usual metric and Imperial sizes for screwing or unscrewing purposes. It can be used with set spanners, ratchets, ring spanners etc. as an extension attachment.