{"product_id":"hertel-2290278-chucking-reamer-27-64-in-hss-6-flute","title":"Hertel 2290278 Chucking Reamer 27\/64 in Hss 6 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 2290278 is a straight-flute chucking reamer designed to finish-ream drilled or bored holes to a precise diameter of 0.4219 inches (27\/64 inch). Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer is suited for general-purpose machining operations where tight hole tolerances are required. The 6-flute configuration provides smooth cutting action and good surface finish in a wide range of workpiece materials. With a 7-inch overall length and a 1-3\/4-inch flute length, it fits standard lathe chucks, drill presses, and milling machine setups. A straight-cylindrical shank ensures easy clamping in a variety of tool holders.\u003c\/p\u003e\u003cp\u003eThis chucking reamer is used in machine shop environments for finishing operations on drilled holes in ferrous and non-ferrous materials. Typical applications include production machining, toolroom work, and maintenance repair operations where hole diameter accuracy and finish quality are critical. The right-hand cutting direction is standard for conventional spindle rotation. It is sized for work requiring a finished hole diameter in the 0.4000 to 0.4999 decimal inch range, making it a common choice for bearing fits, pin fits, and precision bushing installations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e27\/64 inch (0.4219 inch) finished hole diameter for precise sizing\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel (HSS) construction for durability across a range of materials\u003c\/li\u003e\n\u003cli\u003e6 straight flutes provide smooth cutting action and consistent surface finish\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for general-purpose and light production use\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank for easy clamping in chucks and collets\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard machine spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard chucking reamer for use in lathes, drill presses, and milling machines equipped with a chuck or collet capable of holding a straight-cylindrical shank. Verify that the machine spindle rotates right-hand before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eChucking reamers are installed and operated by machinists using standard machine tools. Ensure the workpiece is securely fixtured and the machine spindle is powered off and at a full stop before mounting or removing the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and improve hole finish. Do not use a chucking reamer to remove excessive stock; pre-drill or bore the hole close to final size before reaming.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 27\/64 inch (0.4219 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: HSS (High-Speed Steel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDowel Pin Reamer\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver\/Under Size Reamer\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.19 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241611\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2290278\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51733323317554,"sku":"2290278","price":114.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e222dc0262bb90a42d7d2294d51da27_ae1d835d-238e-4c86-8c12-f7d6dc34168e.jpg?v=1788754222","url":"https:\/\/voomisupply.com\/products\/hertel-2290278-chucking-reamer-27-64-in-hss-6-flute","provider":"Voomi Supply","version":"1.0","type":"link"}