--- product_id: 438293128 title: "1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4)" brand: "houseen" price: "€ 48.96" currency: EUR in_stock: true url: https://www.desertcart.hr/products/438293128-1-4-inch-shank-router-bit-collet-extension-chuck-converter store_origin: HR region: Croatia --- # Extend Length: 2-1/4" Shank Diameter: 1/2" (12.7mm) Material: Carbon Steel 1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) **Brand:** houseen **Price:** € 48.96 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate Your Craft with Precision and Ease! ## Quick Answers - **What is this?** 1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) by houseen - **How much does it cost?** € 48.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/438293128-1-4-inch-shank-router-bit-collet-extension-chuck-converter) ## Best For - houseen enthusiasts ## Why This Product - Trusted houseen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extended Reach:** Achieve greater precision with a 2-1/4" extension for those hard-to-reach areas. - • **Professional Grade:** Perfect for both seasoned pros and passionate hobbyists in various applications. - • **Durable Construction:** Crafted from high-quality carbon steel for long-lasting performance. - • **User-Friendly Design:** Simple installation process with included M Type ER20M wrench for hassle-free use. - • **Versatile Compatibility:** Easily convert between 1/4" and 1/2" shank bits for ultimate flexibility. ## Overview The 1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter is designed for versatility, allowing users to convert and extend both 1/4" and 1/2" shank router bits. Made from durable carbon steel, this tool is perfect for a variety of applications, including boring, milling, and CNC work. The package includes essential components for easy setup and operation. ## Description 1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) ## Features - Shank Diameter: 1/2"(12.7mm), Accept Shank Size: 1/4" & 1/2" Shank, Extend Length: 2-1/4" ; This router collet extension chuck accepts both 1/4" and 1/2" shank router bits for converting and extending. - Carbon Steel: This collet extension rod is made of carbon steel material, with high hardness and durability. - Application:The router collet extension chuck accepts both 1/4" and 1/2" shank router bits for converting and extending. Widely used, boring, milling, drilling, silk attack, sculpture, CNC, and other processing, for professionals and hobbyists demanding. - Easy to Use: Place the router collet extension shank in the 1/2-inch router collet and the router bit shank in the extension collet and tighten both; M Type ER20M wrench included. Need M Type ER20M wrench to tighten the collet. - Package Includes: one 1/2 Inch shank collet extension, one ER20 6.5mm Collet, one ER20 12.7mm Collet, one M Type ER20M wrench. ## Images ![1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) - Image 1](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/61wlCzWr7hL.jpg) ![1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) - Image 2](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/419xafi4BAL.jpg) ![1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) - Image 3](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/61jUkASFHjL.jpg) ![1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter with ER20 Spring Collet and ER20 M Type Collet Chuck Wrench Spanner, ​Convert 1/2-Inch & 1/4-Inch Shank Bits (Size:ER20-1/4) - Image 4](https://m.media-amazon.com/images/W/MEDIAX_792452-T1/images/I/51QSrLL59pL.jpg) ## Available Options This product comes in different **Size** options. --- ## 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.hr/products/438293128-1-4-inch-shank-router-bit-collet-extension-chuck-converter](https://www.desertcart.hr/products/438293128-1-4-inch-shank-router-bit-collet-extension-chuck-converter) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*