Yaocom 19 Pcs ER11 Spring Collet Set with M14 Nuts – Precision CNC Collets 1.0–7.0mm, 1/4 inch, 1/8 inch

Overview

Meet a complete ER11 collection designed to support precise tool holding in CNC engraving, milling, and turning workflows. Yaocom combines robust materials with tight tolerances to help you secure tools confidently and maintain smooth cutting performance across projects of different scales. This 19‑piece set brings together a broad range of sizes and reliable clamping nuts, all engineered to simplify setup and help you focus on your craft.

What you get

• 15 ER11 precision spring collets, covering diameters from 1 mm up to 7 mm, plus 1/4 inch and 1/8 inch options
• 4 ER11A clamping nuts with M14 threading for secure mounting

• Broad clamping range enables handling of small drills, bits, and numerically controlled tools without swapping kits
• 65Mn spring steel construction offers dependable elasticity and a secure grip during high-speed operations

Precision, quality, and reliability

Constructed from 65Mn spring steel, the collets provide consistent elasticity and resilience, helping maintain grip under load. The ER11 collet set is designed for a high level of precision, with an accuracy target around 0.02 mm, supporting repeatable seating and steady performance across milling, drilling, and engraving tasks. The accompanying nuts thread smoothly onto compatible chucks, contributing to a stable cutting experience and improved productivity.

Applications and versatility

This versatile collection is well suited for a variety of devices, including CNC machines, milling centers, engraving machines, and general machining setups. The extended size range accommodates many small‑to‑mid diameter operations, while the M14-threaded nuts expand compatibility with ER type knife handles, reamers, and related tooling. Desktop hobby setups and professional shops alike can benefit from its all‑in‑one practicality.

Tips for best results

For best results, ensure proper seating of each collet in the spindle or chuck, and verify that the nut is securely tightened before starting a task. Store the set in a dry environment to preserve performance and avoid corrosion over time. While the kit is designed for versatility, verify tooling specifications for your specific application.