{"product_id":"hertel-mr34-0338-281-chucking-reamer-0-86mm-spiral-flute","title":"Hertel MR34-0338.281 Chucking Reamer 0.86mm Spiral Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL MR34-0338.281 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a 0.86 mm cutting diameter and a bright polished finish, this reamer delivers accurate, repeatable results in small-bore work where surface finish and dimensional control are critical. The four-flute spiral design with left-hand spiral direction and right-hand cut promotes smooth chip evacuation and reduces chatter during the reaming pass. Machinists and toolroom professionals use this tool in CNC machining centers, drill presses, and manual lathes equipped with a chuck or collet setup.\u003c\/p\u003e\u003cp\u003eThis chucking reamer is suited for precision finishing of small-diameter bores in metalworking environments, including production shops and toolrooms. The straight shank allows direct mounting in a drill chuck or collet holder. Its compact overall length of 50 mm and 7 mm flute length make it appropriate for shallow, close-tolerance bore finishing where a standard reamer geometry would be impractical. The reamer diameter tolerance of 0.0000 to +0.0003 mm supports applications demanding tight fit classifications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard or abrasive materials\u003c\/li\u003e\n\u003cli\u003e0.86 mm cutting diameter with a tolerance of 0.0000 to +0.0003 mm for close-tolerance bore finishing\u003c\/li\u003e\n\u003cli\u003eFour-flute spiral configuration with left-hand spiral and right-hand cut for smooth chip flow\u003c\/li\u003e\n\u003cli\u003eBright polished coating minimizes friction and supports clean surface finishes\u003c\/li\u003e\n\u003cli\u003eStraight shank for direct chuck or collet mounting without adapters\u003c\/li\u003e\n\u003cli\u003eCompact 50 mm overall length with 7 mm flute length suited for shallow bore applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style precision cutting tool for use in standard chuck or collet setups on CNC machining centers, drill presses, and manual lathes capable of accepting a straight-shank reamer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this chucking reamer should be performed by a qualified machinist familiar with small-diameter precision cutting tools. Ensure the machine spindle and collet or chuck are clean and free of runout before seating the shank. Power down the machine completely before tool changes. Avoid applying side loads or using the reamer for material removal beyond the designed finishing allowance, as solid carbide tooling at this diameter is brittle and susceptible to breakage under lateral stress.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.86 mm (0.0339 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50 mm (1.9685 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 7 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\u003eReamer Diameter Tolerance\u003c\/strong\u003e: 0.0000 to +0.0003 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: MR34-0338.281\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51755211555122,"sku":"MR34-0338.281","price":107.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/35f3d6908839a8b36634fade433d0713.jpg?v=1788952246","url":"https:\/\/voomisupply.com\/products\/hertel-mr34-0338-281-chucking-reamer-0-86mm-spiral-flute","provider":"Voomi Supply","version":"1.0","type":"link"}