Omega Products BT30 Test Arbor is a precision reference tool designed for BT30 tooling systems. With a 32 mm diameter and a 250 mm gauge length, it serves as a reliable master mandrel for calibration, setup checks, and fixture alignment. Designated as BT MAS403 (JIS 6339) Master Mandrel, this arbor provides a consistent seating surface for repeatable results across BT30 applications.

• 32 mm Diameter Core for Stable Referencing: Delivers a precise, steady reference point that helps ensure accurate calibrations and consistent measurements during setup and testing.
• 250 mm Gauge Length for Flexible Mounting: Offers ample working length to accommodate a variety of fixtures and configurations, reducing the need for multiple tools and speeding up workflows.
• JIS 6339 Master Mandrel Standard (BT MAS403) Compliance: Conforms to an established industry standard, supporting reliable fit, predictability, and interoperability within BT30 systems.

This BT30 Test Arbor helps technicians, engineers, and machinists achieve quick, dependable alignment and calibration across BT30 applications. Its standardized dimensions and master-mandrel designation enable consistent results, minimize setup time, and enhance confidence in precision checks and fixture integrity.