{"product_id":"er20-1-8-inch-spring-collet-chuck-for-cnc-engravin","title":"ER20 1\/8 Inch Spring Collet Chuck For CNC Engraving And Milling Machines, High Precision 1mm Elastic Shrinkage, 40Cr Steel, Tight Grip Clamping Diameter 3.175mm, Boss Lathe Tooling And Milling Setup","description":"\u003cdiv\u003eER20 1\/8-Inch Spring Collet Chuck for CNC Engraving \u0026amp; Milling\u003cbr\u003e\n✔️ Single piece ER20 1\/8 collet, 21×31.5mm, 3.175mm grip, ±0.015mm \u003cp\u003eThis ER20 1\/8 Spring Collet Chuck is a precision tool designed to securely grip 1\/8\" shanks on CNC engraving and milling machines. It is widely used in mechanical processing, woodworking, and jewelry work for tight, reliable clamping during milling, drilling, and engraving tasks.\u003c\/p\u003e ✅ Clamping diameter: 1\/8\" (3.175mm) with 1mm elastic shrinkage\u003cbr\u003e\n✅ Overall size: 21mm OD × 31.5mm height (0.83\" × 1.24\")\u003cbr\u003e\n✅ Material: 40Cr steel with quenching and tempering\u003cbr\u003e\n✅ High precision: clamping tolerance ±0.015mm\u003cbr\u003e\n✅ Applications include engraving, CNC machining, boring, and drilling\u003cbr\u003e \u003cp\u003e💡 What is an ER20 1\/8 spring collet used for in CNC milling and engraving?\u003c\/p\u003e\n\u003cp\u003eHandy tool for securing small-diameter tooling with consistent accuracy in CNC setups.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eSecurely clamps 1\/8\" (3.175mm) shanks with 1mm elastic shrinkage\u003c\/li\u003e\n\u003cli\u003eMaintains tight tolerance around ±0.015mm for stable results\u003c\/li\u003e\n\u003cli\u003eMade from 40Cr steel with heat treatment for wear resistance\u003c\/li\u003e\n\u003c\/ul\u003e ✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49073685758187,"sku":"VXB0FCMCHBWZ","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71weLuMuDWL.jpg?v=1784424069","url":"https:\/\/vxb.com\/products\/er20-1-8-inch-spring-collet-chuck-for-cnc-engravin","provider":"VXB Bearings","version":"1.0","type":"link"}