{"product_id":"osg-300-1200-chucking-reamer-wire-size-31-solid-carbide","title":"Osg 300-1200 Chucking Reamer Wire Size 31 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 300-1200 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. It carries a wire size designation of 31, corresponding to a decimal diameter of 0.1200 inches, and holds a tight diameter tolerance of +0.0001 to +0.0004 inches for controlled fit on close-tolerance bores. The reamer features a straight flute geometry with a right-hand cut and a straight cylindrical shank for use in standard drill chucks or collet holders. Overall length is 2.25 inches with a flute length of 0.625 inches. Machinists and CNC operators handling light-diameter finish reaming in production or toolroom environments are the primary installers.\u003c\/p\u003e\u003cp\u003eThis reamer is suited for finish reaming wire-gauge holes in ferrous and non-ferrous materials where dimensional accuracy and surface finish are critical. The solid carbide construction makes it appropriate for harder workpiece materials and high-cycle production runs where HSS tooling wears quickly. At 0.1200 inches diameter, it fills the need for precision finishing of small-bore holes in jigs, fixtures, and precision components. The bright, uncoated finish is the standard for general-purpose carbide reaming where coating is not required by the application.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for extended tool life in demanding materials\u003c\/li\u003e\n\u003cli\u003eWire size 31 diameter at 0.1200 inches with tolerance of +0.0001 to +0.0004 inches\u003c\/li\u003e\n\u003cli\u003eStraight flute, right-hand cut geometry for clean chip evacuation in through-holes\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank compatible with standard chucks and collets\u003c\/li\u003e\n\u003cli\u003e4-flute design balances cutting efficiency with bore finish quality\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for general machining without coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide chucking reamer from the OSG 300D series for general machining applications requiring wire size 31 hole finishing.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed and operated by machinists in manual or CNC drilling and milling equipment. Secure the straight shank firmly in a drill chuck or precision collet holder before use, and verify runout is within acceptable limits to protect the close-tolerance carbide cutting edges. Always bring the spindle to a complete stop before changing or inspecting the reamer. Appropriate speeds and feeds for the workpiece material should be referenced from the manufacturer or standard machining data tables before use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter (Wire Size)\u003c\/strong\u003e: 31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter (Decimal Inch)\u003c\/strong\u003e: 0.1200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.625 inches\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\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: 300-1200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730743755058,"sku":"300-1200","price":52.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b3af7ad9693a92dc89007783f5a05a9f_94fb8859-5b56-417e-99be-bba375ccedfb.jpg?v=1788722084","url":"https:\/\/voomisupply.com\/products\/osg-300-1200-chucking-reamer-wire-size-31-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}