ER Collets – ER11 & ER20

ER Collets – ER11, ER16, & ER20

Accurate. Reliable. CNC Ready.

Whether you’re running a traditional spindle or a full ATC system, our ER11, ER16, and ER20 collets deliver the precision and durability you need. Engineered for woodworking applications and ISO20 tool holders, these collets ensure an ultra-tight grip with minimal runout—keeping your cuts consistent and clean.

️ Key Features

• Great Precision for Woodworking:
  ±0.0004″ (±0.01mm) runout for exceptional accuracy
  Looking for Metalworking Precision?

• Wide Size Range:
  Available in many diameters for both ER11, ER16, and ER20 formats

• Ideal for ISO20 Holders:
  Our ER20 collets are fully compatible with ISO20 tool holders used in ATC systems

New to ER Collets? Learn how they work in our KB guide »

⚠️ Compatibility Note

These collets are not compatible with Makita routers. While Carbide3D offers a Makita-style spindle that supports ER11 collets, most Makita routers use a proprietary collet system that does not work with standard ER collets.

Upgrade your spindle setup with the trusted collet system used across industrial and hobby CNC platforms. Whether you’re dialing in tight tolerances or prepping for multi-bit projects, these collets have you covered.