Renishaw A-5003-3680 Cmm Ball Stylus 3mm M4 Ruby

Product Description

The RENISHAW A-5003-3680 is a CMM ball stylus designed for use with coordinate measuring machines in dimensional inspection and metrology applications. It features a ruby ball point mounted on a solid carbide stem with an M4 threaded connection. The ruby ball measures 3 mm in diameter, and the stylus has an overall length of approximately 1.97 inches (50 mm). Ruby is the preferred ball material in CMM work due to its hardness and resistance to wear, helping maintain measurement repeatability over high-cycle use. This stylus is installed by metrology technicians and quality control professionals working in manufacturing and inspection environments.

This stylus is suited for touch-trigger and scanning probe heads that accept M4 threaded styli. The compact 50 mm overall length makes it well suited for measuring features with moderate reach requirements without introducing excessive stylus deflection. It is commonly used in quality labs and on the shop floor for inspecting machined components, bores, surfaces, and geometric features on production parts.

Key Features

• 3 mm ruby ball tip for wear resistance and consistent measurement accuracy
• Solid carbide stem minimizes deflection and supports repeatable stylus seating
• M4 threaded connection compatible with standard CMM probe extensions and modules
• 50 mm overall length provides moderate reach for a wide range of inspection tasks
• Lightweight construction at 0.2 pounds supports use with sensitive probe heads

Compatibility

Designed as an OEM-style replacement or direct-fit stylus for CMM probe systems accepting M4 threaded ball styli. No specific compatible model numbers were provided in the available product data.

Installation Notes

CMM styli should be installed by qualified metrology technicians familiar with the probe system in use. Power down or disable the CMM and retract the probe before changing styli to avoid damage to the probe head or stylus. Use the appropriate stylus wrench and avoid over-tightening the M4 thread, as excessive torque can damage the stylus or probe module. After installation, run a qualification routine to recalibrate the stylus tip position before taking measurements.