{"product_id":"accupro-785053-er40-collet-0-531-inch","title":"Accupro 785053 ER40 Collet 0.531 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 785053 is an ER40 series collet designed for use in CNC machining centers, milling machines, and other rotating toolholding applications. It accepts tooling with a decimal inch size of 0.531 inches and a minimum collet capacity of 0.516 inches, giving machinists a reliable clamping range for end mills, drills, and other round-shank cutting tools. The collet measures 1.75 inches wide by 1.75 inches deep by 2 inches in height and weighs 0.6 pounds. It is installed by qualified machinists and toolroom personnel working with ER40-compatible spindle systems.\u003c\/p\u003e\u003cp\u003eThis collet is suited for production and job-shop environments where ER40 toolholding is the standard. Typical applications include vertical and horizontal milling, drilling, and reaming operations. The ER40 series is widely used across general metalworking, aerospace, and precision machining shops. It is sold individually and is ready to install in any ER40-compatible collet chuck without modification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eER40 collet series for broad compatibility with ER40 collet chucks\u003c\/li\u003e\n\u003cli\u003eDecimal inch size of 0.531 inches for consistent tool clamping\u003c\/li\u003e\n\u003cli\u003eMinimum collet capacity of 0.516 inches\u003c\/li\u003e\n\u003cli\u003eCompact dimensions: 1.75 x 1.75 x 2 inches\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.6 pounds for easy handling during tool changes\u003c\/li\u003e\n\u003cli\u003eSold individually with a minimum order quantity of one\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit collet for machines equipped with ER40-series collet chucks.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. Before installing or removing the collet, ensure the machine spindle is fully powered down and at a complete stop. Use the appropriate ER40 collet nut and spanner wrench rated for the application. Do not exceed the recommended runout tolerances for the chuck and collet assembly, and inspect the collet bore and taper for chips or damage before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Size (Decimal Inch)\u003c\/strong\u003e: 0.531 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Collet Capacity\u003c\/strong\u003e: 0.516 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 785053\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51731073728818,"sku":"785053","price":44.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b1bfed2edd82a4d6f8b7f76736bcb7dd.jpg?v=1788726626","url":"https:\/\/voomisupply.com\/products\/accupro-785053-er40-collet-0-531-inch","provider":"Voomi Supply","version":"1.0","type":"link"}