Omega Products ER11 Collet Standard Precision - 10 Micron Run-Out - 4mm - 3.5mm

Precision matters in every cut. The Omega ER11 Collet Standard Precision is engineered to deliver a dependable grip and minimal run-out for everyday machining tasks. With just 10 microns of run-out, you get cleaner holes, straighter slots, and tighter tolerances across the board.

The ER11 collet is designed to fit standard ER11 collet chucks, pairing seamlessly with your CNC milling machine or micro-drilling setup. The 3.5–4.0 mm tool-diameter range makes it ideal for small-diameter tooling, such as micro-mills and small drills, where precision matters most.

Key benefits

• 10 micron run-out ensures minimal deviation during rotation, improving surface finish and dimensional accuracy.
• 3.5–4.0 mm clamping range optimized for small-diameter tooling commonly used in precision milling and drilling.
• Standard ER11 compatibility allows quick swaps with existing chucks, reducing downtime and setup time.
• Robust build designed for repeated clamping without fretting, extending tool life and reliability.

Who should use it?

Hobbyists upgrading their mini CNC or drill setup, technicians performing jewelry or electronics housings, and small-scale workshop teams needing reliable micro-cutting performance will benefit from this collet. It’s also a solid choice for education labs teaching precision machining fundamentals.

How it compares to alternatives

Compared to generic or lower-tolerance clamps, this ER11 collet delivers a consistently tight grip with far less run-out, which translates to better concentricity and fewer tool passes required to achieve the same result. It’s a practical upgrade when your projects demand repeatable accuracy and durable performance.

Maintenance tips

• Keep the collet and chuck clean; wipe away chips and coolant after use.
• Always use the correct torque when tightening; overtightening can damage the collet or tool.
• Store in a clean, dry environment to prevent corrosion and wear.