Omega Products ER50 Collet Standard Precision - 10 Micron Run-Out - 40mm - 38.8mmMeet the Omega ER50 Collet Standard Precisionbuilt 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