{"product_id":"hertel-mr46-1189-625-chucking-reamer-0-1189-in-solid-carbide","title":"Hertel MR46-1189.625 Chucking Reamer 0.1189 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL MR46-1189.625 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. With a diameter of 0.1189 inches and a diameter tolerance of 0.0000 to +0.0003 mm, this reamer delivers tight, consistent bore sizing in a single pass. The spiral flute geometry with a left-hand spiral direction promotes smooth chip evacuation while maintaining a right-hand cutting action. At 2.9527 inches overall length with a 16 mm flute length, it is sized for close-tolerance work in small-diameter through-holes. Machinists and toolroom professionals install this reamer in CNC machining centers, drill presses, or manual mills using a standard collet or chuck.\u003c\/p\u003e\u003cp\u003eThis chucking reamer is suited for finishing pre-drilled holes to precise diameter in ferrous and non-ferrous materials. The solid carbide construction makes it appropriate for hardened materials, cast iron, aluminum alloys, and other abrasive workpiece materials where high-speed steel tooling wears prematurely. The straight shank allows direct mounting in collet chucks, ER-style collets, or Jacobs-style drill chucks commonly found in production and job-shop settings. The bright, uncoated finish is standard for general-purpose reaming applications where coating is not required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for superior wear resistance in abrasive and hard materials\u003c\/li\u003e\n\u003cli\u003e0.1189 inch diameter with tolerance of 0.0000 to +0.0003 mm for precision bore sizing\u003c\/li\u003e\n\u003cli\u003eLeft-hand spiral flute direction with right-hand cutting action for smooth chip flow\u003c\/li\u003e\n\u003cli\u003e4 flutes for consistent surface finish and dimensional accuracy\u003c\/li\u003e\n\u003cli\u003eStraight shank for compatibility with standard collet and chuck toolholding systems\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for general-purpose reaming applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide chucking reamer for use in CNC machining centers, drill presses, and manual milling machines equipped with standard straight-shank collet or chuck toolholding systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Secure the straight shank firmly in a collet or drill chuck to the toolholder manufacturer's specified runout tolerance before use. Ensure the spindle and workpiece fixture are fully stopped before changing or adjusting the reamer. Always pre-drill or bore the hole to the appropriate starting diameter before reaming; do not use a reamer to remove excessive stock.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 0.1189 inches\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\u003eOverall Length\u003c\/strong\u003e: 2.9527 inches (75 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 16 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\/Uncoated\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: MR46-1189.625\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51733613838642,"sku":"MR46-1189.625","price":169.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6cfddb2096f0c20a82e4920f2ca92818.jpg?v=1788756929","url":"https:\/\/voomisupply.com\/products\/hertel-mr46-1189-625-chucking-reamer-0-1189-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}