---
product_id: 353695692
title: "QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)"
brand: "qwork"
price: "€ 26.68"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/353695692-qwork-er20-a-collet-clamping-nuts-for-cnc-milling-chuck
store_origin: GR
region: Greece
---

# M25 Thread Size Precision Ground & Hardened 4-Pack Versatile Compatibility QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)

**Brand:** qwork
**Price:** € 26.68
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade Your CNC Game with Precision & Power!

## 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?** € 26.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/353695692-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

- • **Universal Fit:** Compatible with ER type tool holders, boring cutters, extension bars, and drill bits for maximum versatility.
- • **Value Pack Advantage:** Includes 4 high-quality clamping nuts, so you’re always prepared for maintenance or upgrades.
- • **Engineered for Precision:** Crafted from durable 40CR steel with a black oxide finish for long-lasting performance.
- • **Ready for Heavy-Duty Use:** Precision ground and hardened hex nuts ensure reliable clamping under demanding CNC milling and lathe operations.
- • **Sleek & Functional Design:** Hexagonal shape with a flat head style for easy installation and secure tool holding.

## Overview

The QWORK ER20 A Collet Clamping Nuts come in a 4-pack, made from hardened 40CR steel with a black oxide finish. Designed for M25 thread size and 25mm capacity, these precision-ground hex nuts fit most ER type tool holders and accessories, delivering reliable, heavy-duty clamping for CNC milling and lathe applications.

## Description

Full description not available

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Thread Size | M 25 |
| Capacity | 25 Millimeters |
| Manufacturer | QWORK |
| UPC | 781380133464 |
| Part Number | WD4766 |
| Item Weight | 8.8 ounces |
| Package Dimensions | 4.8 x 4.21 x 1.22 inches |
| Item model number | WD4766 |
| Size | ER20-A |
| Color | 4 Pack |
| Finish | Powder Coated |
| Shape | Hexagonal |
| Item Package Quantity | 1 |
| Number Of Pieces | 4 |
| Head Style | Flat |
| Cutting Diameter | 25 Millimeters |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** QWORK
- **Material:** Alloy Steel
- **Item Diameter:** 25 Millimeters
- **Item Weight:** 248.8 Grams
- **Compatible Devices:** Lathe

## 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/61jTw1QhSWL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## 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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**Shop now:** [https://www.desertcart.gr/products/353695692-qwork-er20-a-collet-clamping-nuts-for-cnc-milling-chuck](https://www.desertcart.gr/products/353695692-qwork-er20-a-collet-clamping-nuts-for-cnc-milling-chuck)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-12*