Omega Products BT50 Test Arbor - 50mm Diameter - 350mm Gauge Length M&D The tapered neck and robust

The tapered neck and robust carbide core minimize vibration and chatter

It produces smooth contours and tight radii in narrow rib sections

and general fabrication where a flush screw head is essential

delivering longer tool life and reliable performance in tough machining environments

reducing deflection and delivering consistently accurate cuts

Omega Products BT50 Test Arbor - 50mm Diameter - 350mm Gauge Length M&D The tapered neck and robustOmega 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