.1 3/4 OD X 20MM ID Z STYLE BUSHING Global CNC type Z Tool Holder Bushings are designed with added set screws in the head to allow for increased rigidity and insert alignment.
. Global CNC type DD double duty Tool Holder Bushings are designed as a combination of the industry standard split B style tool holder bushing and the J set screw clearance style tool holder bushing.2 1/2 OD X 1/2 ID DD STYLE BUSHING They are used to adapt a wide variety of Boring Bars, Drills, Reamers and Shank type tools.