{"product_id":"osg-300-0472-chucking-reamer-1-2mm-straight-flute-carbide","title":"Osg 300-0472 Chucking Reamer 1.2mm Straight Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 300-0472 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. With a 1.2 mm (0.0472 inch) diameter and a right-hand cutting direction, this reamer holds a tight diameter tolerance of +0.0001 to +0.0004 inches, making it suitable where consistent bore size and surface finish are critical. The 4-flute straight geometry provides clean chip evacuation in through and blind holes. At 38 mm overall length with a 10 mm flute length, it fits compact toolholders and short-reach setups. Machinists, tool-and-die makers, and CNC operators working in precision environments are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThe 300-0472 is intended for general machining applications requiring accurate, repeatable hole finishing in small-diameter bores. The straight cylindrical shank mates with standard collet chucks and drill chucks commonly found on CNC machining centers, drill presses, and manual mills. The bright, uncoated finish suits a wide range of workpiece materials where coating interaction is a concern or where regrinding is anticipated. This reamer does not include coolant-through capability and is not a dowel pin or over\/under size reamer.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in precision reaming\u003c\/li\u003e\n\u003cli\u003e1.2 mm diameter with tolerance of +0.0001 to +0.0004 inches for tight bore control\u003c\/li\u003e\n\u003cli\u003e4-flute straight geometry for smooth cutting action and consistent chip clearance\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank for compatibility with standard collet and drill chucks\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish suitable for general machining and regrinding applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction per standard CNC and manual machine operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for general machining applications requiring small-diameter hole finishing; part of the OSG 300D series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eChucking reamers are installed by machining professionals in correctly sized collet chucks or drill chucks rated for the shank diameter. Always ensure the spindle is fully stopped and the machine is powered off before changing tooling. Pre-drill the hole to the appropriate undersize before reaming to achieve the specified tolerance. Use of cutting fluid is recommended to extend tool life and improve surface finish, even though coolant-through is not available on this reamer.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 1.20 mm (0.0472 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 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: 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: 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 300D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241611\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 300-0472\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754700472626,"sku":"300-0472","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b3af7ad9693a92dc89007783f5a05a9f_fefcce99-51d0-46ad-84e4-1845c56653d7.jpg?v=1788947951","url":"https:\/\/voomisupply.com\/products\/osg-300-0472-chucking-reamer-1-2mm-straight-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}