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Stylus setting tool for accurate A-angle and B-angle adjustment

SST250 is a fast, accurate stylus angle setting tool for CMMs and Equator™ gauging systems. Easily set A-angles and B-angles, reduce machine downtime, and achieve consistent measurement results.

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The SST250 is available in our online store, together with our comprehensive range of precision styli.

Buy online

Achieve fast, repeatable stylus angle adjustments with this dedicated setting tool designed for CMMs and Equator™ gauging systems. It enables precise alignment of A-angles and B-angles, helping reduce machine downtime, improve measurement consistency, and support operators at every skill level.

This stylus setting tool allows users to set stylus A-angles and B-angles accurately and consistently, typically achieving alignment within approximately one degree. It provides a guided, easy-to-follow process suitable for knuckle and star styli, helping teams maintain reliable measurement performance across multiple operators and shifts.

The tool is ideal for applications where fast changeovers, consistent probe performance, and clear visual angle references are important.

How SST250 can benefit you

Faster set-up, less downtime

Speed up probe changeovers and reduce CMM and Equator™ system interruptions. Operators can confidently adjust stylus angles without needing to rely on more complex or time-consuming machine-based set-ups.

Accurate, repeatable results

With clear angle references and a stable mechanical design, you can achieve repeatable stylus angle settings — improving process consistency and reducing the risk of alignment-related measurement errors.

Easy for any operator

The workflow supports both experienced operators and newer team members, minimising the risk of mistakes and ensuring consistent results across shifts.

Supports a wide range of styli

Compatible with common Renishaw holders and stylus configurations, including knuckle units and 4- and 5-way star centres used in flexible, multi tip measurement applications.

Compact capacity

Designed to accommodate stylus holders up to 233 mm in length (the distance from the kinematic seat to the stylus interface) — providing a versatile work envelope while keeping the system compact and easy to use.

Discover the correct stylus for your application on our precision styli for metrology page.

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