Omega Products ER20 Collet Standard Precision - 10 Micron Run-Out - 4.5mm - 3.5mm

The Omega ER20 Collet, Standard Precision, is a trusted workhorse for everyday metalworking and CNC milling tasks. Engineered to pair seamlessly with an ER20 collet chuck, this collet delivers reliable, repeatable clamping for round tools you rely on every shift. With a tight 10 micron run-out specification, it brings a level of concentricity that translates into cleaner cuts, smoother finishes, and tighter tolerances across a broad range of materials.

Key features that impact your workflow:

• 10 micron run-out keeps tool deviation to a bare minimum, reducing chatter and improving surface finish on profiles, pockets, and holes.
• 3.5–4.5 mm shank range designed to clamp common round tooling within this footprint, providing versatility for milling, drilling, and light precision operations.
• ER20 chuck compatibility ensures fast tool changes and dependable hold in standard CNC setups and benchtop machines.
• Segmented, balanced jaws promote even clamping force around the tool circumference, minimizing run-out and enhancing gripping stability during high-speed rotation.
• General purpose performance ideal for aluminum, steel, plastics, and other common workpieces where precision and repeatability matter.

Practical benefits for your shop or hobby CNC rig: when you pair this ER20 collet with the right tool, you’ll notice steadier feed rates, more consistent dimensional accuracy across multiple passes, and longer tool life thanks to reduced vibration. It’s a straightforward upgrade for operators who want predictable results without sacrificing setup speed.

Who benefits most: machinists, hobbyists, and small shops that run routine milling and drilling tasks with ER20 collet chucks. If you’re building a reliable, repeatable workflow for precision parts, this standard precision ER20 collet is a dependable choice that stays focused on performance over gimmicks.

Tips for best results: keep tools and collet interfaces clean, avoid over-tightening, and inspect for wear or nicks that could affect run-out. Regular checks help preserve the 10 micron performance and ensure consistent results across jobs.