GLOBAL CNC 3 1/2" OD X 50MM ID DD STYLE BUSHING

GLOBAL CNC 3 1/2" OD X 50MM ID DD STYLE BUSHING | Global CNC’s 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. They feature a split style with two clearance holes and a flat on the O.D. They are used to adapt a wide variety of Boring Bars, Drills, Reamers and Shank type tools. • Hardened and precision ground concentric • Black Oxide Coating • Made in the USA