Precision Lathe Alignment Mandrel – MT2 & MT3 Double Ended Test Bar, EN8D, 450mm | Bluefox Tools

The Precision Lathe Alignment Mandrel from Bluefox Tools is an essential instrument for achieving accurate spindle and tailstock alignment in both CNC and manual lathe machines. Designed with precision and reliability in mind, this test bar features a double-ended Morse taper configuration, offering MT2 on one end and MT3 on the other. This dual taper design provides maximum flexibility and eliminates the need to keep multiple test bars on hand when working with machines of different taper sizes, making it an efficient and versatile solution for multi-machine workshops, toolrooms, and maintenance departments.

Crafted from high-quality EN8D medium carbon steel, this mandrel delivers exceptional strength, stability, and resistance to deflection, which are critical factors in ensuring accurate alignment results. The steel is precisely ground and polished to tight tolerances, offering a highly concentric and straight reference surface for testing and calibration. With an overall length of 450mm, the test bar is long enough to highlight even subtle deviations over distance, making it ideal for detecting taper issues, misalignment between centers, or bed wear across the lathe’s travel.

The test bar is used by inserting the appropriate taper end into the lathe spindle or tailstock. Once in place, it serves as a reliable reference axis for measurements taken using dial indicators, test indicators, or laser alignment systems. Whether you are installing a new machine, rebuilding a used one, or performing regular maintenance, this mandrel helps ensure that your lathe is accurately aligned and operating within acceptable tolerances, which is essential for achieving high-quality turning results and prolonging the life of your tooling and machinery.

Its precision-ground surface ensures a tight, accurate fit in the spindle, minimizing play and reducing the risk of false readings during measurement. The robust EN8D construction ensures that the mandrel maintains its shape and accuracy even under repeated use. The smooth polished finish also helps protect your equipment by preventing galling or excessive wear at the contact points.

This alignment test bar is ideal for industrial machinists, maintenance engineers, quality inspectors, and anyone who relies on precise machine performance. Whether used in a production facility, maintenance workshop, or educational training lab, it provides a consistent and dependable means of verifying machine geometry and diagnosing alignment issues.

Bluefox Tools, known for its commitment to quality and precision in metalworking tools, delivers another trusted solution with this double-ended alignment mandrel. By combining expert craftsmanship, durable materials, and practical versatility, this tool is a must-have for professionals who demand accuracy and performance from their equipment.