---
product_id: 121629123
title: "SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm"
brand: "sainsmart"
price: "S$45"
currency: SGD
in_stock: true
reviews_count: 13
category: "Sain Smart"
url: https://www.desertcart.sg/products/121629123-sainsmart-genmitsu-7pcs-er11-spring-collet-set-for-cnc-engraving
store_origin: SG
region: Singapore
---

# Ultra-low 0.01mm run-out tolerance 1mm-7mm precision grip range Hardened, formulated spring steel SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm

**Brand:** sainsmart
**Price:** S$45
**Availability:** ✅ In Stock

## Summary

> ⚙️ Grip precision, mill perfection — own the edge in CNC craftsmanship!

## Quick Answers

- **What is this?** SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm by sainsmart
- **How much does it cost?** S$45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/121629123-sainsmart-genmitsu-7pcs-er11-spring-collet-set-for-cnc-engraving)

## Best For

- sainsmart enthusiasts

## Why This Product

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

## Key Features

- • **Upgrade Your Toolbox:** Join thousands of pros who trust Genmitsu for flawless bit holding—don’t get left behind in precision machining.
- • **Micron-Level Accuracy:** Run-out tolerance of just 0.01mm guarantees ultra-smooth milling and engraving results with minimal vibration.
- • **Engineered for Durability:** Crafted from formulated spring steel and hardened for long-lasting, reliable performance under heavy CNC workloads.
- • **Precision Fit for Every Bit:** Covers 7 sizes from 1mm to 7mm, eliminating guesswork and ensuring perfect grip every time.
- • **Versatile CNC Compatibility:** Optimized for CNC milling, lathe tools, and engraving machines—your all-in-one workholding solution.

## Overview

The SainSmart Genmitsu 7Pcs ER11 Spring Collet Set offers a comprehensive 1mm to 7mm gripping range with seven precision-ground collets made from hardened formulated spring steel. Designed for CNC milling, lathe, and engraving machines, it delivers exceptional accuracy with a minimal 0.01mm run-out tolerance, ensuring stable, vibration-free bit holding for professional-grade machining.

## Description

Product Description Genmitsu 7Pcs ER11 Spring Collet Set Gripping Range: 1mm to 7mm (1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm) Perfect for CNC milling lathe tool and work-holding engraving machine. Hardened and precision ground. Specification Material: formulated spring steel Gripping Range: 1mm to 7mm Run-out tolerance: 0.01mm (0.0006")

Review: Nice - as described brilliant product.
Review: A great solution for your odd sized bits! - Fed up with CNC bits confusingly being listed in either imperial fractions or millimetres? These ER11 collets cover every bit diameter from 1mm - 7mm. (Or 0.039 inch to 0.276 inch if you prefer!) A really useful addition to the CNC toolbox!

## Features

- ➤7Pcs ER11 Collet Set Gripping Range: 1mm to 7mm (1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm)
- ➤Made of formulated spring steel.
- ➤Perfect for CNC milling lathe tool and work-holding engraving machine. To learn more about how to choose the right bits to meet your needs, please find the Comparison Chart (CNC Bits Buying Guide) at the Product Guides and Documents Section below.
- ➤Hardened and precision ground.
- ➤Run-out tolerance 0.01mm (0.0006")

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P98CKMR |
| Best Sellers Rank | 95,831 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Workholding Collets |
| Brand | SainSmart |
| Capacity | 7 millimetres |
| Compatible Devices | CNC Milling Machine, CNC Workholding |
| Compatible devices | CNC Milling Machine, CNC Workholding |
| Country of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 807 Reviews |
| Handle Type | wrench-tightened |
| Included Components | 7Pcs ER11 Spring Collet Set |
| Item Diameter | 1 Millimetres |
| Item Weight | 0.06 Kilograms |
| Item diameter | 1 Millimetres |
| Item weight | 0.06 Kilograms |
| Lock Type | Manual |
| Manufacturer | Genmitsu |
| Material | Formulated spring steel |
| Model Number | ER11 |
| Number of Items | 7 |
| Part Number | ER11 |
| Thread Size | 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm |
| Thread size | 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm |

## Product Details

- **Brand:** SainSmart
- **Compatible devices:** CNC Milling Machine, CNC Workholding
- **Item diameter:** 1 Millimetres
- **Item weight:** 0.06 Kilograms
- **Material:** Formulated spring steel

## Images

![SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm - Image 1](https://m.media-amazon.com/images/I/61EnFMnjW6L.jpg)
![SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm - Image 2](https://m.media-amazon.com/images/I/61fJ9XAHhQL.jpg)
![SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm - Image 3](https://m.media-amazon.com/images/I/61fnfy1seHL.jpg)
![SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm - Image 4](https://m.media-amazon.com/images/I/61Z9P7uWWgL.jpg)
![SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm - Image 5](https://m.media-amazon.com/images/I/61qNpnRMEgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice
*by A***R on 26 January 2026*

as described brilliant product.

### ⭐⭐⭐⭐⭐ A great solution for your odd sized bits!
*by A***O on 8 September 2025*

Fed up with CNC bits confusingly being listed in either imperial fractions or millimetres? These ER11 collets cover every bit diameter from 1mm - 7mm. (Or 0.039 inch to 0.276 inch if you prefer!) A really useful addition to the CNC toolbox!

### ⭐⭐⭐⭐ Just the job.
*by D***R on 3 January 2023*

If you need some collets for your cnc these are just the job. Well made and look like they will last forever. If you don’t need some of these why are you reading this 😂.

## Frequently Bought Together

- SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm
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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-08*