{"product_id":"hertel-mr34-0744-406-chucking-reamer-0-0744-in-carbide","title":"Hertel MR34-0744.406 Chucking Reamer 0.0744 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL MR34-0744.406 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a reamer diameter of 0.0744 inches (1.89 mm) and a diameter tolerance of 0.0000 to +0.0003 mm, this tool delivers accurate, repeatable hole sizing at the micro end of the decimal-inch range. The four-flute spiral configuration with left-hand spiral and right-hand cutting direction provides smooth chip evacuation and stable cutting action. The bright (polished) finish reduces friction and supports clean bore surfaces. Machinists and tool-room technicians working on precision components install this reamer in CNC machining centers, drill presses, or manual lathes using a standard straight shank chuck.\u003c\/p\u003e\u003cp\u003eThis reamer is suited for precision finishing operations in metalworking environments where hole diameter accuracy is critical. The 0.0744-inch diameter places it in the 0.0500 to 0.0999 inch diameter range, making it appropriate for small-bore work on ferrous and non-ferrous materials where solid carbide tooling is preferred over high-speed steel for improved wear resistance and dimensional consistency. Typical applications include instrument components, hydraulic fittings, and precision mechanical assemblies requiring controlled bore sizing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for superior wear resistance and dimensional stability\u003c\/li\u003e\n\u003cli\u003eFour-flute spiral geometry with left-hand spiral for smooth chip flow\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard spindle rotation\u003c\/li\u003e\n\u003cli\u003eBright (polished) coating reduces friction and promotes clean bore finish\u003c\/li\u003e\n\u003cli\u003eStraight shank fits standard collets and drill chucks without special tooling\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of 0.0000 to +0.0003 mm supports tight-tolerance hole finishing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style precision chucking reamer for use in CNC machining centers, drill presses, and manual lathes equipped with a straight-shank collet or drill chuck capable of holding a 0.0744-inch diameter tool.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists familiar with precision reaming operations. Ensure the spindle and workpiece are fully secured before engaging the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality. Do not use this reamer as a drill — reamers require a pre-drilled pilot hole sized to within a few thousandths of the finished diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.0744 inches (1.89 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Range\u003c\/strong\u003e: 0.0500 to 0.0999 inches (1.00 to 2.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 1.9685 inches (50.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.7087 inches (10.00 mm)\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: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Direction\u003c\/strong\u003e: Left Hand\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright (Polished)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: 0.0000 to +0.0003 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\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: MR34-0744.406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51731771719986,"sku":"MR34-0744.406","price":109.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/520f5bf697a060d000f30d00528e7c97_7b137596-8dda-4d46-9201-c38a2f764580.jpg?v=1788734767","url":"https:\/\/voomisupply.com\/products\/hertel-mr34-0744-406-chucking-reamer-0-0744-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}