{"product_id":"value-collection-sc80040991-er16-collet-chuck-straight-shank","title":"Value Collection SC80040991 ER16 Collet Chuck Straight Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION SC80040991 is an ER16 collet chuck with a straight shank, designed for use in milling, drilling, and light machining operations. It accepts ER16 collets and covers a clamping range of 0.019 to 0.394 inches, making it suitable for a wide variety of tooling diameters. The chuck features a total indicator runout (TIR) of 0.0004 inches, supporting accurate, repeatable tool positioning. The shank diameter measures 5\/8 inch with a shank length of 7.1 inches. Actuation is performed with a wrench via the collet nut, which has a hex diameter of 13\/16 inch. Machinists and toolroom technicians are the primary installers and users of this chuck.\u003c\/p\u003e\n\u003cp\u003eThis ER16 collet chuck is suited for use in vertical machining centers, knee mills, and CNC lathes or mills that accept a straight-shank toolholder. The straight shank design allows it to be held in a variety of spindle or quill configurations. It is commonly used in production and job-shop environments where consistent runout and broad collet capacity coverage are required across multiple tool diameters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eER16 collet system with a clamping range of 0.019 to 0.394 inches\u003c\/li\u003e\n  \u003cli\u003eTIR of 0.0004 inches for precise, repeatable tool runout\u003c\/li\u003e\n  \u003cli\u003eStraight shank with 5\/8 inch diameter and 7.1 inch shank length\u003c\/li\u003e\n  \u003cli\u003eWrench-actuated collet nut with 13\/16 inch hex diameter\u003c\/li\u003e\n  \u003cli\u003eCollet nut diameter of 0.86 inches and lock nut length of 0.68 inches\u003c\/li\u003e\n  \u003cli\u003eCompact overall footprint suitable for tight-clearance machining setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit toolholder for machines accepting a straight-shank ER16 collet chuck with a 5\/8 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist or toolroom technician with the machine powered down and the spindle fully stopped. Use the correct ER16 collet wrench and spanner to properly seat and torque the collet nut — never use improvised tools that could damage the nut or chuck body. Verify runout with a dial indicator after installation before beginning any cutting operation. Follow the machine manufacturer's guidelines for shank retention and drawbar force where applicable.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet System\u003c\/strong\u003e: ER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Collet Capacity\u003c\/strong\u003e: 0.019 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Collet Capacity\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Wrench\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 7.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Nut Diameter\u003c\/strong\u003e: 0.86 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Diameter\u003c\/strong\u003e: 13\/16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Nut Length\u003c\/strong\u003e: 0.68 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 7.95 inches (L) x 1.18 inches (W) x 1.18 inches (H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.66 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SC80040991\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51722552934706,"sku":"SC80040991","price":111.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3ddb156e6993ec40cf3ac2286629f08b.jpg?v=1788592715","url":"https:\/\/voomisupply.com\/products\/value-collection-sc80040991-er16-collet-chuck-straight-shank","provider":"Voomi Supply","version":"1.0","type":"link"}