--- product_id: 121629123 title: "SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm" brand: "sainsmart" price: "₨881" currency: SCR in_stock: true reviews_count: 13 category: "Sain Smart" url: https://www.desertcart.sc/products/121629123-sainsmart-genmitsu-7pcs-er11-spring-collet-set-for-cnc-engraving store_origin: SC region: Seychelles --- # 1mm-7mm precision grip range 0.01mm ultra-low run-out tolerance Hardened spring steel durability SainSmart Genmitsu 7Pcs ER11 Spring Collet Set for CNC Engraving Milling Lathe Tool 1.0mm-7.0mm **Brand:** sainsmart **Price:** ₨881 **Availability:** ✅ In Stock ## Summary > ⚙️ Grip precision, mill perfection — never miss a cut! ## 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?** ₨881 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/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 - • **Micron-Level Accuracy:** Run-out tolerance of just 0.01mm guarantees ultra-smooth milling and engraving with minimal vibration. - • **Engineered for Endurance:** Crafted from formulated spring steel and hardened for long-lasting, reliable performance under heavy CNC workloads. - • **Toolbox Essential Upgrade:** Say goodbye to imperial-metric confusion and odd-sized bits—this set is your all-in-one CNC collet solution. - • **Seamless CNC Compatibility:** Optimized for CNC milling, lathe tools, and engraving machines to elevate your precision machining game. - • **Precision Fit for Every Bit:** Covers 7 essential sizes from 1mm to 7mm, eliminating guesswork and ensuring perfect bit grip every time. ## Overview The SainSmart Genmitsu 7Pcs ER11 Spring Collet Set offers a versatile 1mm to 7mm gripping range with ultra-precise 0.01mm run-out tolerance. Made from hardened formulated spring steel, this set is engineered for CNC milling, lathe, and engraving tools, delivering durability and micron-level accuracy to professional machinists and makers alike. ## 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 | 191,935 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 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 806 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 | | 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) ## 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 - Genmitsu 40pcs End Mills CNC Router Bits, 1/8" Shank CNC Cutter Milling Carving Bit Set Including 2-Flute Flat Nose & Ball Nose End Mill, Nano Blue Coat & Titanium Coat CNC Bits, MC40A - WSOOX CNC Spoilboard Surfacing Router Bit, 1/4 Inch Shank Slab Flattening Planing Bits 1'' Cutting Diameter Carbide Planer Bit Woodworking Router Tool --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/121629123-sainsmart-genmitsu-7pcs-er11-spring-collet-set-for-cnc-engraving](https://www.desertcart.sc/products/121629123-sainsmart-genmitsu-7pcs-er11-spring-collet-set-for-cnc-engraving) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-07-30*