Meet the Omega ER50 Collet Standard Precision—built to deliver dependable, repeatable toolholding in everyday machining. When you clamp a round tool in an ER50 collet chuck, concentricity matters for consistent diameters, cleaner finishes, and smoother toolpaths. This collet is engineered to maintain that precision across routine milling, drilling, and other common operations.

• 10 micron run-out for tight, dependable concentricity from first cut to last. Less run-out means more accurate diameters, improved surface finish, and reduced need for rework.
• ER50 compatibility—designed to pair seamlessly with standard ER50 collet chucks you already use in your shop, delivering easy integration and reliable clamping.
• Size specifications listed as 40mm and 38.8mm, giving you a clear reference for fitment within your tooling setup.
• General purpose machining suitability—optimized for a broad range of round tooling tasks, from roughing to finishing passes, with consistent performance.
• Precision-made for repeatability—manufactured to tight tolerances to ensure each clamping cycle delivers the same dependable grip and alignment.

This collet is ideal for machinists and hobbyists who demand reliability without compromise. If you’re chasing tighter tolerances, fewer tool-path corrections, and a smoother finish, the Omega ER50 Collet Standard Precision helps you achieve those outcomes in everyday projects.

Practical use scenarios

• Clamp end mills, drills, and other round tooling in ER50 chucks for consistent runs and accurate pockets or grooves.
• Maintain straight, true tool paths on aluminum, steel, and other common workpiece materials by minimizing axial run-out.
• Streamline setups in repetitive tasks where repeatable clamping is critical for fixture-to-fixture interchangeability.

Care and longevity tips

• Keep the contact faces clean and free of debris before every installation to preserve accuracy.
• Inspect for surface wear or nicks that could compromise concentricity, and replace if you notice degradation.
• Store in a clean, dry environment to prevent corrosion and maintain smooth operation over time.