{"product_id":"hertel-mr34-0087-059-chucking-reamer-0-0087-in-carbide","title":"Hertel MR34-0087.059 Chucking Reamer 0.0087 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL MR34-0087.059 is a solid carbide chucking reamer designed for precision hole finishing in close-tolerance applications. With a cutting diameter of 0.0087 inches (0.22 mm) and an overall length of 1.9685 inches (50 mm), this micro-diameter reamer is built for the tight dimensional control required in instrument machining, watchmaking, medical device manufacturing, and similar fine-tolerance work. The four-flute, left-hand spiral geometry with right-hand cutting direction provides smooth chip evacuation and stable cutting action at small diameters. A bright polished finish reduces friction and helps maintain bore finish quality.\u003c\/p\u003e\n\u003cp\u003eThis reamer is suited for precision machine shop applications where hole diameters in the sub-0.05-inch range must be held to tight tolerances. It is intended for use in CNC machining centers, bench drill presses, or precision lathes with a straight-shank collet or chuck setup. Typical applications include finishing pre-drilled or bored holes in metals and other machinable materials where surface finish and dimensional accuracy are critical. Licensed machinists and toolroom technicians are the primary users of this tool.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance at micro diameters\u003c\/li\u003e\n  \u003cli\u003e0.0087 inch (0.22 mm) cutting diameter with tolerance of 0.0000 to +0.0003 mm for precision fitment\u003c\/li\u003e\n  \u003cli\u003eFour-flute left-hand spiral geometry with right-hand cutting direction for smooth chip flow\u003c\/li\u003e\n  \u003cli\u003eBright polished finish reduces friction and supports superior bore surface finish\u003c\/li\u003e\n  \u003cli\u003eStraight shank compatible with standard collets and chucks\u003c\/li\u003e\n  \u003cli\u003eFlute length of 1.50 mm for controlled reaming depth in thin-section workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a straight-shank chucking reamer for use in precision machining equipment with collet or drill chuck toolholding systems capable of accommodating sub-0.05-inch diameter tools.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool should be installed in a clean, concentric collet or precision drill chuck to minimize runout at the micro diameter. Secure the shank fully to the recommended engagement depth before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish. At this diameter, excessive feed pressure or misalignment can cause tool breakage — verify spindle runout and alignment before use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.0087 inches (0.22 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.9685 inches (50.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.50 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\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: MR34-0087.059\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732755054898,"sku":"MR34-0087.059","price":95.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/520f5bf697a060d000f30d00528e7c97_9e6e2366-b3cc-478b-a1b4-53f96ce535ef.jpg?v=1788746354","url":"https:\/\/voomisupply.com\/products\/hertel-mr34-0087-059-chucking-reamer-0-0087-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}