{"product_id":"hertel-72297104-chucking-reamer-letter-j-hss-6-flute","title":"Hertel 72297104 Chucking Reamer Letter J Hss 6 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 72297104 is a high-speed steel (HSS) chucking reamer in Letter J size, designed to finish-ream drilled or bored holes to a precise 0.2770-inch diameter. With a 6-flute spiral configuration and right-hand spiral direction, it produces smooth bore surfaces and accurate tolerances in a single pass. The straight-cylindrical shank seats securely in a standard drill chuck or collet. At 4.125 inches overall length with a 1.5-inch flute length, this reamer is well-suited for through-holes and shallow blind holes in production and maintenance environments. Machinists and toolroom professionals use it on manual lathes, drill presses, and CNC equipment.\u003c\/p\u003e\u003cp\u003eThis chucking reamer is intended for use in metalworking applications where hole-finishing accuracy is required. It falls within the 0.2500- to 0.2999-inch reamer diameter range, making it appropriate for Letter J hole sizes in ferrous and non-ferrous materials. Typical applications include fitting dowel pins, bearing bores, and precision shaft fits in job shop, maintenance, and light manufacturing settings. The HSS construction handles a broad range of workpiece materials at moderate cutting speeds without requiring carbide tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.2770-inch cutting diameter — Letter J size for precise hole finishing\u003c\/li\u003e\n\u003cli\u003e6-flute spiral design with right-hand spiral for smooth surface finish and chip evacuation\u003c\/li\u003e\n\u003cli\u003eHSS construction provides toughness and re-sharpenability across a wide range of materials\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and collet holders\u003c\/li\u003e\n\u003cli\u003e1.5-inch flute length suits through-holes and moderate-depth blind holes\u003c\/li\u003e\n\u003cli\u003eUNSPSC Code 23241611 for procurement system compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard chucking reamer for metalworking machines accepting a straight-cylindrical shank in the 0.2500- to 0.2999-inch diameter range, including drill presses, lathes, and CNC machining centers equipped with standard drill chucks or collet systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eChucking reamers are installed and removed by qualified machinists following standard toolroom safety practices. Secure the shank fully in the chuck or collet and verify runout before cutting. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve finish. Never use a reamer to remove more stock than the tool is rated for — pre-drill or bore the hole to within the recommended reaming allowance before engaging the reamer.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.2770 inches (Letter J)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter Range\u003c\/strong\u003e: 0.2500 to 0.2999 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: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.5 inches\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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: 72297104\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51748281286962,"sku":"72297104","price":64.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/511ef1c3f2b38f9af4c1de8fe37f18dc_f06b6ef8-aa3e-4cae-b762-4be27ac81528.jpg?v=1788891686","url":"https:\/\/voomisupply.com\/products\/hertel-72297104-chucking-reamer-letter-j-hss-6-flute","provider":"Voomi Supply","version":"1.0","type":"link"}