Omega Products BT50 Test Arbor - 50mm Diameter - 350mm Gauge Length M&D It produces smooth contours and

It produces smooth contours and tight radii in narrow rib sections

Material: HSS-E (high-speed steel with cobalt) for enhanced wear resistance and heat tolerance

more accurate cuts in tight tolerances

this end mill is built to handle demanding manufacturing environments

delivering longer tool life and reliable performance in tough machining environments

Omega Products BT50 Test Arbor - 50mm Diameter - 350mm Gauge Length M&D It produces smooth contours andOmega BT50 Test Arbor is a precision master mandrel designed for BT50 tooling and spindle alignment. With a 50 mm diameter and 350 mm gauge length, it provides a stable reference for calibration, runout checks, and setup verification in workshops and production environments. Listed as BT MAS403 (JIS 6339) Master Mandrel, it is designed for compatibility with standard BT50 tooling. 50 mm diameter for stability: A robust diameter minimizes flex during