Omega Products BT40 Test Arbor - 40mm Diameter - 300mm Gauge Length RPTECH Material: HSS-E (high-speed steel with

Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance in demanding cutting conditions

Extended Reach with Stub Cut Geometry: The stub-cut length paired with an extended neck provides enhanced access to deep pockets and complex contours

helping to prevent clogging and ensure clean slot walls

this chucker reduces runout-related defects and vibration

precise contours: Creates accurate radii on narrow ribs and curved surfaces

Omega Products BT40 Test Arbor - 40mm Diameter - 300mm Gauge Length RPTECH Material: HSS-E (high-speed steel withThe Omega BT40 Test Arbor is a precision master mandrel designed for BT40 tooling, delivering a stable reference for tool holder alignment and fixture setup. Its ideal for engineers, machinists, and workshop technicians who need reliable runout checks and repeatable setups in milling and turning environments. Built to the BT MAS403 standard and compatible with JIS 6339, this 40 mm diameter test arbor features a long 300 mm gauge length for versatile