{"product_id":"er20-spring-collet-chuck-4mm-clamping-diameter-001","title":"ER20 Spring Collet Chuck 4mm Clamping Diameter, 0.015mm Ultra Precision Tolerance, 40Cr Steel Construction for Durability, Ideal for CNC Engraving, Milling and Lathe Work, High Quality Tooling Set, 2 Pcs","description":"\u003cdiv\u003eER20 4mm Spring Collet Chuck, 2-Pack, Ultra-Precise\u003cp\u003e\n✔️ 0.015mm tolerance, 40Cr steel, precision ground for CNC engraving\u003c\/p\u003e \u003cp\u003eThis ER20 Spring Collet Chuck set provides a precise, ready-to-use option for holding small-diameter cutters and drills in CNC mills, lathes, and engraving machines. It’s compatible with standard ER20 collets and is built for durability in metalworking tasks.\u003c\/p\u003e ✅ Clamping diameter: 4 mm for tight, accurate tool holding\u003cbr\u003e\n✅ Material: 40Cr steel for durability and wear resistance\u003cbr\u003e\n✅ Precision: 0.015 mm \/ 0.0006 inch critical surfaces are ground\u003cbr\u003e\n✅ Applications: fits manual mills, CNC mills, lathes, engraving machines\u003cbr\u003e\n✅ Pack size: 2 pieces\u003cbr\u003e \u003cp\u003e💡 What is an ER20 spring collet used for? It’s a compact toolholding solution for securing small-diameter cutters, drills, and other tools in a variety of machining setups. - It fits standard ER20 toolholders\u003cbr\u003e\n- It provides precise clamping with ground surfaces for minimal runout\u003cbr\u003e\n- It’s made from 40Cr steel for durability\u003cbr\u003e\n- It supports high-speed milling and precise engraving\u003cbr\u003e\n\u003c\/p\u003e \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48077602717931,"sku":"VXB0D1CKQDZD","price":49.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61-GNXuW0VL.jpg?v=1775870095","url":"https:\/\/vxb.com\/products\/er20-spring-collet-chuck-4mm-clamping-diameter-001","provider":"VXB Bearings","version":"1.0","type":"link"}