Briney Tooling Systems V50BB-400-800-AN is a CAT50 hollow mill designed for internal-bore milling on CAT50 spindle tooling. It features a 4.00 in outer diameter body with an 8.00 in gauge length and an internal bore of 1-11/16 in, making it suitable for deep, through-bore operations. A 1/4-20 × 3/4 in tapped hole is provided for secure mounting, and the tool body is machined from 4150 steel for strength and rigidity in demanding milling tasks. The AN suffix denotes a specific geometry/length variant within Briney’s V50BB hollow-mill family, intended for use with Briney CAT-style toolholding systems to achieve precise, reliable hollow-milling performance.
