{"product_id":"value-collection-204-2520-er25-collet-5-16-inch","title":"Value Collection 204-2520 ER25 Collet 5\/16 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 204-2520 is an ER25 series collet designed for use in CNC machining centers, milling machines, and other rotating spindle equipment that accepts ER25 collet chucks. The collet holds a 0.3120 inch (5\/16 inch) round shank cutting tool or workpiece with a total indicator runout (TIR) of 0.0005 inches, delivering the concentricity required for precision cutting operations. Machinists and CNC operators rely on ER-style collets for their repeatable clamping force and broad compatibility across toolholding systems. The part weighs 0.09 pounds.\u003c\/p\u003e\n\u003cp\u003eThis collet is suited for production and job-shop environments where consistent tool runout is critical to surface finish and tool life. It is used in vertical and horizontal machining centers, drill-tap centers, and manual milling machines equipped with ER25-compatible toolholders. The 5\/16 inch capacity makes it a common choice for end mills, drill bits, and reamers in that shank size. It is installed by machinists, toolroom technicians, and CNC setup personnel.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eER25 collet series — fits all ER25-standard collet chucks and toolholders\u003c\/li\u003e\n  \u003cli\u003e0.3120 inch (5\/16 inch) clamping capacity for standard round-shank tooling\u003c\/li\u003e\n  \u003cli\u003e0.0005 inch TIR for precise concentricity and reduced tool runout\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.09 pounds — minimal added mass to spindle assembly\u003c\/li\u003e\n  \u003cli\u003eSingle-piece quantity packaging — suitable for individual replacement or tooling kit builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement collet for use in any toolholding system built to the ER25 collet standard.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eER collets are installed and removed by a qualified machinist or CNC toolroom technician. Always de-energize and lock out the machine spindle before changing collets. Seat the collet fully into the collet nut before threading onto the chuck body, and use a calibrated torque wrench with the appropriate ER25 spanner to achieve proper clamping force — refer to the toolholder manufacturer specification for the correct torque value. Inspect the collet bore and seating taper for chips or damage before each use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Size (Decimal Inch)\u003c\/strong\u003e: 0.3120 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Size (Fractional Inch)\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\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: 204-2520\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715714187570,"sku":"204-2520","price":24.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d044540a75fac6e078154a4ecd3cf536.jpg?v=1788517609","url":"https:\/\/voomisupply.com\/products\/value-collection-204-2520-er25-collet-5-16-inch","provider":"Voomi Supply","version":"1.0","type":"link"}