{"product_id":"hertel-72012909-chucking-reamer-0-1290-in-hss-4-flute","title":"Hertel 72012909 Chucking Reamer 0.1290 in Hss 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 72012909 is a chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer features a straight-cylindrical shank for secure chuck mounting in drill presses, lathes, and CNC machining centers. The 0.1290-inch cutting diameter falls within the 0.1000 to 0.1499-inch decimal inch range. With 4 straight flutes and a right-hand cutting direction, it produces clean, accurate bores with consistent surface finish. Overall length is 3.5 inches with a 7\/8-inch flute length. Machinists and toolroom professionals use this reamer for light-stock removal to bring drilled holes to final diameter tolerance.\u003c\/p\u003e\n\u003cp\u003eThis chucking reamer is suited for use in machine shop environments, toolroom operations, and production floor applications where tight bore tolerances are required. It is appropriate for general-purpose reaming of through-holes and blind holes in ferrous and non-ferrous materials. The straight flute geometry makes it well-suited for reaming holes in softer metals and materials where chip evacuation from a straight channel is adequate. The straight-cylindrical shank fits standard drill chucks and collet holders that accept the corresponding shank diameter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.1290-inch cutting diameter for precision bore finishing to close tolerances\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel (HSS) construction provides durability across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003e4 straight flutes with right-hand cutting direction for smooth material removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish — no coating buildup to affect dimensional accuracy\u003c\/li\u003e\n  \u003cli\u003e3.5-inch overall length with 7\/8-inch flute length suitable for shallow to moderate bore depth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard chucking reamer for use in drill presses, lathes, and machining centers equipped with a drill chuck or collet holder accepting a straight-cylindrical shank. Not configured as a dowel pin reamer or over\/under size reamer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eChucking reamers are installed and operated by machinists following standard shop practices. Secure the straight-cylindrical shank firmly in a drill chuck or collet before operation, and verify runout before taking a finishing pass. Always apply appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality. Pre-drill the hole to within 0.005 to 0.015 inch of finished size using a twist drill before reaming — do not attempt to ream from a raw casting or forged surface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.1290 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: 0.15 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241611\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 72012909\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51734310519090,"sku":"72012909","price":48.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/560aeb02ec3ebf33aa2712c4aa7d1f31_fea30c89-505b-4fde-9aa2-991f4da3074f.jpg?v=1788762467","url":"https:\/\/voomisupply.com\/products\/hertel-72012909-chucking-reamer-0-1290-in-hss-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}