---
product_id: 383420652
title: "Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs"
brand: "utoolmart"
price: "307 kr"
currency: DKK
in_stock: true
reviews_count: 8
url: https://www.desertcart.dk/products/383420652-utoolmart-r8-precision-round-spring-collet-r8-collet-precision-r8
store_origin: DK
region: Denmark
---

# M12 tail thread for quick install 0.013mm precision tolerance 65Mn hardened alloy steel Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs

**Brand:** utoolmart
**Price:** 307 kr
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your milling game with precision that won’t quit!

## Quick Answers

- **What is this?** Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs by utoolmart
- **How much does it cost?** 307 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/383420652-utoolmart-r8-precision-round-spring-collet-r8-collet-precision-r8)

## Best For

- utoolmart enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Installation:** M12 coarse thread and positioning slot enable fast, hassle-free setup
- • **Powerful Clamping Force:** Wide 3/16-inch range with strong grip that resists wear and tear
- • **Unmatched Precision Fit:** Engineered to 0.013mm tolerance for flawless tool holding
- • **Versatile Compatibility:** Fits any R8 taper spindle, expanding your milling machine’s capabilities
- • **Durable Alloy Steel Build:** Crafted from hardened 65Mn steel for long-lasting performance

## Overview

The Utoolmart R8 Precision Round Spring Collet is a high-quality 3/16-inch mill chuck holder made from hardened 65Mn alloy steel. Featuring a precise 0.013mm tolerance and an M12 tail thread, it offers strong clamping force and quick installation. Designed for R8 taper spindles, this durable collet enhances tool versatility and reliability for professional milling applications.

## Description

Full description not available

## Features

- 【Fetures】- R8 Collets do not collapse. The Tail Thread Is M12; Tooth Type: Coarse Teeth; Precision: 0.013mm; Hardness(HRC): HRC55; Clamping Range (Inner Diameter): 3/16-inch.
- 【Material】- Using high quality 65Mn alloy steel, hardened, long life and more durable. Precision ground to close tolerance. Positioning slot make the collets more quickly and convently to install.
- 【Advantage】- Large clamping force, wide glamping range, not aasy to wear, strong and durable. Surface grinding to ensure tolerance and accuracy, strong versatility and reliable.
- 【High Quality 】- Hardened and ground throughout Superior quality R8 Collets Set. Precision Thread Hole allows the collet to be quicky connected with pull rod. The silver color looks perfectly cool, also providing more conveniently function.
- 【Application】- Spindle is R8 taper that any R8 shank will fit. It used for clamping tools,change the taper hole of spindle,It is easy to use,to enlarge the use range of machine tool.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Utoolmart |
| Part Number | UT190919J-0013 |
| Item Weight | 8.8 ounces |
| Package Dimensions | 4.5 x 1.5 x 0.5 inches |
| Item model number | UT190919J-0013 |
| Size | 3/16" |
| Color | Silver |
| Material | Alloy Steel |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Utoolmart
- **Material:** Alloy Steel
- **Compatible Devices:** Milling Machine
- **Thread Size:** M12
- **Manufacturer:** Utoolmart

## Images

![Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs - Image 1](https://m.media-amazon.com/images/I/41udIIvyn1L.jpg)
![Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs - Image 2](https://m.media-amazon.com/images/I/51yGNE9yMRL.jpg)
![Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs - Image 3](https://m.media-amazon.com/images/I/61AKSawbAjL.jpg)
![Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs - Image 4](https://m.media-amazon.com/images/I/61MOx3-1RGL.jpg)
![Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs - Image 5](https://m.media-amazon.com/images/I/51eWeaiuYdL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice collet
*by T***. on October 30, 2024*

I only buy the sizes I need rather than an entire set so this works for me

### ⭐ Nothing but garbage
*by A***R on July 8, 2025*

They put the wrong threads on the inside it's a POS messed up my bridgeport because of it

### ⭐⭐⭐⭐⭐ Nice collet
*by S***R on March 22, 2021*

Good quality & concentricity.

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**Shop now:** [https://www.desertcart.dk/products/383420652-utoolmart-r8-precision-round-spring-collet-r8-collet-precision-r8](https://www.desertcart.dk/products/383420652-utoolmart-r8-precision-round-spring-collet-r8-collet-precision-r8)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-28*