Omega Products ER20 Collet Coolant Sealed Standard Precision - 10 Micron Run-Out -5mm

The Omega ER20 Collet is a coolant-sealed, standard-precision holder designed for round-shank tooling. It delivers sub-10 μm run-out across a 3–13 mm clamping range, providing repeatable seating and clean finishes for milling, drilling, and precision work. Newer versions have no rubber seal on the nose, and the longitudinal slots are arranged so they do not overlap at the center to minimize coolant loss. For best results, use only round-shank tooling with no clamping flats to maintain a reliable seal.

• Sub-10 μm Run-Out Precision: Ensures repeatable tool seating and tight tolerances for accurate milling and drilling across the 3–13 mm range.
• Coolant-Sealed Design with Leak-Prevention: The non-overlapping slot geometry prevents coolant from escaping at the nose, helping keep your work area cleaner and your tooling protected.
• Versatile ER20 Size with Round Shank Tools: Accepts round-shank tooling in the 3–13 mm range for quick tool changes and consistent performance; ensure tooling has a round, flat-free shank to maintain the seal.

By delivering precise, repeatable clamping, the ER20 Collet helps you finish parts with tighter tolerances, reduces setup time, and lowers the likelihood of rework. The coolant-sealed design keeps chips and coolant away from the spindle, promoting a cleaner workflow and longer tool life. Its 3–13 mm range and robust ER20 design make it a flexible choice for a variety of tools and applications, enabling faster changes and dependable results across jobs.