---
product_id: 55688561
title: "Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5"
brand: "hhip"
price: "€ 73.18"
currency: EUR
in_stock: true
reviews_count: 3
url: https://www.desertcart.nl/products/55688561-pro-series-by-hhip-3900-0689-collet-chuck-nut-um
store_origin: NL
region: Netherlands
---

# .0003" Tolerance 42 CrMo Material 18,000 RPM Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5

**Brand:** hhip
**Price:** € 73.18
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Machining Game!

## Quick Answers

- **What is this?** Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 by hhip
- **How much does it cost?** € 73.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/55688561-pro-series-by-hhip-3900-0689-collet-chuck-nut-um)

## Best For

- hhip enthusiasts

## Why This Product

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

## Key Features

- • **Optimal Hardness:** With a hardness rating of HRC 50-52, this nut is built to withstand the toughest conditions.
- • **Durable Construction:** Crafted from 42 CrMo steel, ensuring longevity and reliability.
- • **Precision Engineering:** Achieve unparalleled accuracy with a tolerance of just .0003".
- • **High-Speed Performance:** Designed to handle up to 18,000 RPM for maximum efficiency.
- • **Class 4H Thread Tolerance:** Experience superior fit and function with a top-tier thread tolerance.

## Overview

The Pro Series by HHIP 3900-0689 Collet Chuck Nut is engineered for precision and durability, featuring a maximum speed of 18,000 RPM, a thread tolerance of Class 4H, and a robust construction from 42 CrMo steel with a hardness rating of HRC 50-52.

## Description

Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5

## Features

- Balanced to 18,000 RPM
- Tolerance is .0003" Maximum
- Thread Tolerance Class: 4H-Class
- Material is 42 CrMo
- Hardness is HRC 50-52

## Product Details

- **Material:** Metal
- **Fastener Type:** Acorn
- **Thread Size:** M25
- **Metal Type:** Chromium Molybdenum Steel
- **Finish Type:** Unfinished

## Images

![Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 - Image 1](https://m.media-amazon.com/images/I/710vDVvmCyL.jpg)
![Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 - Image 2](https://m.media-amazon.com/images/I/41bYoOKTyQL.jpg)
![Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 - Image 3](https://m.media-amazon.com/images/I/411xqw1qlvL.jpg)
![Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 - Image 4](https://m.media-amazon.com/images/I/61e1i+lJMmL.jpg)
![Pro Series by HHIP 3900-0689 Collet Chuck Nut, Um-Type Er20, 18000 RPM, M25 x 1.5 - Image 5](https://m.media-amazon.com/images/I/61cLyy7gyvL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good collet nut!
*by A***R on January 31, 2025*

Collet nut worked great did need to manually grind a chamfer in the top of nut to increase ease of engaging the nut to spindle.

### ⭐⭐⭐⭐⭐ Works Great
*by G***N on February 9, 2024*

Had No vibration with this nut. The collet snaps in perfectly. Just to remind people ER collets need to be inserted properly, if you need to unscrew the nut twice to release the bit your collet is not snaped in properly. I recommend this Nut

### ⭐ Almost impossible to insert and remove collets.
*by H***E on September 12, 2022*

My fingers and thumbs are sore from fighting with this collet nut when installing and removing collets. It's also frustrating to thread it onto my lathe spindle, it just refuses to engage with the threads until you hit the one tiny spot where it locks in, never seen anything like that.Maybe I just got a bad one, either way, it's being returned.

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**Shop now:** [https://www.desertcart.nl/products/55688561-pro-series-by-hhip-3900-0689-collet-chuck-nut-um](https://www.desertcart.nl/products/55688561-pro-series-by-hhip-3900-0689-collet-chuck-nut-um)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-28*