---
product_id: 548892709
title: "QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)"
brand: "qwork"
price: "€ 41.38"
currency: EUR
in_stock: false
reviews_count: 5
category: "Qwork"
url: https://www.desertcart.gr/products/548892709-qwork-er20-a-collet-clamping-nuts-for-cnc-milling-chuck
store_origin: GR
region: Greece
---

# M25 thread size for secure fit Precision ground & hardened steel Compatible with ER20 tool holders QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)

**Brand:** qwork
**Price:** € 41.38
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Lock in precision, unlock your CNC’s full potential!

## Quick Answers

- **What is this?** QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) by qwork
- **How much does it cost?** € 41.38 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/548892709-qwork-er20-a-collet-clamping-nuts-for-cnc-milling-chuck)

## Best For

- qwork enthusiasts

## Why This Product

- Trusted qwork brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Risk-Free Purchase:** Backed by a smooth, worry-free 30-day return policy and responsive customer support for total peace of mind.
- • **Robust M25 Threading:** Ensures a rock-solid grip on your CNC milling chuck holder, minimizing tool slippage during high-speed operations.
- • **Universal Compatibility:** Fits most ER type tool holders, boring cutters, extension bars, and drill bits—your all-in-one clamping solution.
- • **Engineered for Precision:** Crafted from 40CR alloy steel with black oxide finish for unmatched durability and corrosion resistance.
- • **Pack of Four Convenience:** Get four premium clamping nuts in one package—always have a reliable replacement on hand to avoid downtime.

## Overview

The QWORK ER20 A Collet Clamping Nuts set includes four M25 threaded nuts made from hardened 40CR alloy steel with a black oxide finish. Designed for compatibility with ER20 tool holders and various milling accessories, these precision-ground nuts provide secure, reliable clamping for CNC milling and lathe operations. With a strong build and a user-friendly return policy, they’re the essential upgrade for professionals demanding consistent performance.

## Description

QWORK

Review: Snelle levering - Product voldoet aan de verwachtingen.
Review: Nice - Very nice

## Features

- Package Content: Includes 4 x M25 ER20A clamping nuts.
- Model: ER20 A, Material: 40CR steel and black oxide finish. Precision ground and hardened.
- Feature: After precision grinding and hardening, the hex nut can be a great replacement for the broken part and can fit most tool holders.
- Suitable for: The hex nut can work with ER type tool handle, boring cutter, tool bar, extension bar nut holding drill bit and other tools.
- 100% Satisfied Service: Enjoy a smooth&worry-free return service within a month. Any questions feel free to contact us, we will be here for you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08YWJHNKT |
| Brand Name | QWORK |
| Capacity | 25 Millimeters |
| Compatible Devices | Milling Machine |
| Customer Reviews | 4.4 out of 5 stars 455 Reviews |
| Handle Type | keyed |
| Included Components | M25 ER20A clamping nuts |
| Item Diameter | 25 Millimeters |
| Item Weight | 248.8 Grams |
| Lock Type | Manual |
| Manufacturer | QWORK |
| Material Type | Alloy Steel |
| Thread Size | M 25 |
| UPC | 781380133464 |

## Product Details

- **Brand:** QWORK
- **Material:** Alloy Steel
- **Item diameter:** 25 Millimeters
- **Item weight:** 248.8 Grams
- **Compatible devices:** Milling Machine

## Images

![QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) - Image 1](https://m.media-amazon.com/images/I/51B+bmMDLxS.jpg)
![QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) - Image 2](https://m.media-amazon.com/images/I/51QT+oljyOS.jpg)
![QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) - Image 3](https://m.media-amazon.com/images/I/51q0k0hN7MS.jpg)
![QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) - Image 4](https://m.media-amazon.com/images/I/61jTw1QhSWL.jpg)
![QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black) - Image 5](https://m.media-amazon.com/images/I/71dfSWStdVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Snelle levering
*by R***D on 21 October 2024*

Product voldoet aan de verwachtingen.

### ⭐⭐⭐⭐⭐ Nice
*by S***I on 4 June 2024*

Very nice

### ⭐⭐⭐⭐⭐ Bon produit
*by S***E on 10 December 2025*

Très bien, correspond à la description

## Frequently Bought Together

- QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)
- uxcell ER20 Spring Collet, 1/4" Chuck for CNC Engraving Machine Lathe Milling 2pcs
- uxcell ER20 Spring Collet, 1/2" Chuck for CNC Engraving Machine Lathe Milling 2pcs

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-27*