{"product_id":"kennametal-1729862-er-collet-er25-series-0-5-inch","title":"Kennametal 1729862 Er Collet ER25 Series 0.5 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1729862 is an ER25 series ER collet designed for use in collet chuck toolholding systems on CNC machining centers, milling machines, and drill presses. This collet accepts a 0.5-inch (1\/2-inch) shank diameter tooling and delivers a total indicator runout (TIR) of 0.0203 mm (0.000800 inch), providing the tight concentricity needed for precision cutting operations. With an overall length (OAL) of 34.01 mm and an overall diameter of 26.01 mm, it fits standard ER25 collet nut and chuck assemblies. Machinists and toolroom technicians rely on this collet for consistent tool grip and minimal runout in high-speed applications.\u003c\/p\u003e\n\u003cp\u003eThis collet is suited for use in both manual and CNC machine tool setups where ER25 toolholding systems are installed. Typical applications include end milling, drilling, reaming, and tapping operations in production and job-shop environments. The 0.5-inch bore size accommodates standard half-inch cutting tools and drill shanks commonly used in metalworking and manufacturing. It is appropriate for light to heavy-duty machining operations across a range of materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eER25 collet series for compatibility with standard ER25 chuck bodies and collet nuts\u003c\/li\u003e\n  \u003cli\u003e0.5-inch (1\/2-inch) bore accepts standard half-inch shank tooling\u003c\/li\u003e\n  \u003cli\u003eLow TIR of 0.0203 mm (0.000800 inch) supports precision and repeatability\u003c\/li\u003e\n  \u003cli\u003eOverall length of 34.01 mm fits within standard ER25 chuck geometry\u003c\/li\u003e\n  \u003cli\u003eOverall diameter of 26.01 mm conforms to ER25 collet envelope\u003c\/li\u003e\n  \u003cli\u003eSold individually — one collet per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for standard ER25 collet chuck systems accepting 0.5-inch bore collets. Use only in chuck bodies and collet nuts rated for the ER25 collet series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and removal should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully powered down and the chuck body is clean and free of chips or debris before seating the collet. Use the appropriate ER25 collet nut and a calibrated torque wrench sized for the nut style — do not overtighten by hand or with impact tools. Inspect the collet and chuck bore for wear or damage before each use to maintain stated TIR performance.\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 Bore Size (Inch)\u003c\/strong\u003e: 0.5000 inch (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0203 mm (0.000800 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 34.01 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 26.01 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0661 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1729862\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51755214274866,"sku":"1729862","price":79.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/99231e16a96201b85edb363ed1403870.jpg?v=1788952279","url":"https:\/\/voomisupply.com\/products\/kennametal-1729862-er-collet-er25-series-0-5-inch","provider":"Voomi Supply","version":"1.0","type":"link"}