{"product_id":"accupro-er11hp-06-35-er-collet-0-25-in-er11","title":"Accupro ER11HP 06.35 Er Collet 0.25 in ER11","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO ER11HP 06.35 is a precision ER11-series collet designed for use in CNC machining centers, milling machines, and high-speed spindle toolholding systems. With a collet bore size of 0.25 inches and a total indicator runout (TIR) of 0.0002 inches (0.0050 mm), this collet delivers the tight tolerances required for precision cutting, drilling, and finishing operations. Manufactured to ER11 standards, it fits ER11 collet chucks and holders across a wide range of machine tool platforms. Machinists and CNC operators rely on consistent TIR performance to maintain part accuracy and extend tool life.\u003c\/p\u003e\u003cp\u003eThis collet is suited for light-duty to medium-duty machining applications including drilling, reaming, tapping, and end milling in both production and job-shop environments. The ER11 series is among the most widely used collet standards in precision machining, making this collet a common replacement or spare in shops running smaller-diameter tooling. It is appropriate for both manual and CNC-controlled spindles where ER11 toolholding is specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCollet bore size of 0.25 inches for standard quarter-inch shank tooling\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0002 inches (0.0050 mm) for high-precision runout control\u003c\/li\u003e\n\u003cli\u003eER11 collet series — one of the most common precision toolholding standards\u003c\/li\u003e\n\u003cli\u003eCompact form factor: approximately 1.23 inches tall and 1 inch in diameter\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.35 pounds for easy handling and storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or spare collet for machine tool spindles and toolholders built to the ER11 collet standard.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eER collets are installed by qualified machinists or CNC setup technicians. Always power down and lock out the spindle before changing collets. Use the correct ER11 collet nut and spanner wrench rated for the holder — do not substitute collet nuts from other ER series. Inspect the collet bore and chuck taper for chips or debris before seating, and verify TIR with a dial indicator after installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Bore Size\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR (Decimal Inch)\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR (mm)\u003c\/strong\u003e: 0.0050 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.23 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\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: ER11HP 06.35\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51753452044594,"sku":"ER11HP 06.35","price":71.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4b4c380caf146dcb81496712cd464c5d.jpg?v=1788936930","url":"https:\/\/voomisupply.com\/products\/accupro-er11hp-06-35-er-collet-0-25-in-er11","provider":"Voomi Supply","version":"1.0","type":"link"}