Renishaw A-5003-0073 Cmm Ball Stylus 4mm Ruby M2

Product Description

The RENISHAW A-5003-0073 is a CMM ball stylus designed for coordinate measuring machine probing applications. It features a 4 mm ruby ball tip mounted on a stainless steel stem with an M2 threaded shank, giving it a precise and repeatable contact surface for dimensional inspection work. The overall length is 22 mm with an effective working length of 10 mm, making it well suited for reaching into shallow bores, pockets, and recessed features. Ruby is the standard choice for high-cycle CMM probing due to its hardness and low wear rate. Metrology technicians and quality control professionals install this stylus on compatible CMM probe heads.

This stylus is used in both shop-floor and laboratory CMM setups where accurate dimensional verification is required. It fits M2 threaded probe modules and is appropriate for general-purpose inspection of machined parts, castings, and assemblies. The compact 22 mm overall length suits applications where clearance is limited and a short-reach stylus is preferred over extended-length configurations. It is sold individually and is a direct replacement for worn or damaged styli of the same configuration.

Key Features

• 4 mm ruby ball tip for high-wear-resistance contact probing
• M2 thread shank compatible with standard CMM probe modules
• Stainless steel stem provides rigidity and corrosion resistance
• 22 mm overall length with 10 mm effective working length for shallow-feature access
• 2 mm stem diameter keeps deflection low during contact measurement

Compatibility

Designed as an OEM-style replacement stylus for CMM probe heads that accept M2 threaded ball styli. Consult your CMM probe module documentation to confirm thread size and clearance requirements before installation.

Installation Notes

CMM styli should be installed and removed by qualified metrology technicians or CMM operators following the probe manufacturer's service procedures. Power down or disable the CMM and disengage the probe head before changing styli to avoid damage to the probe module. Handle the ruby ball with care and avoid contact with abrasive surfaces. After installation, perform a qualification or re-qualification routine on the reference sphere to update the stylus calibration data in the CMM software.