{"product_id":"accupro-b140250r-corner-radius-boring-bar-solid-carbide","title":"Accupro B140250R Corner Radius Boring Bar Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO B140250R is a corner radius boring bar designed for precision internal machining operations. Built from submicron solid carbide with a bright finish, it delivers the hardness and wear resistance required for tight-tolerance bore work. The bar cuts right-hand and handles a minimum bore diameter of 0.14 inches with a maximum bore depth of 0.25 inches. The 3\/16-inch shank diameter and 2-inch overall length make it suitable for compact setups on CNC lathes and manual turning equipment. Machinists and toolroom operators use this bar when a controlled corner radius is required at the bottom of a bore.\u003c\/p\u003e\u003cp\u003eThis boring bar is used in production and job-shop environments where interior corner geometry must be held to a defined radius. The corner radius range of 0.0050 to 0.0080 inches suits applications where sharp internal corners must be avoided to reduce stress concentration or meet a part drawing callout. It is installed in right-hand boring bar holders and is well suited to turning centers, engine lathes, and manual boring machines handling small-diameter work. Typical materials bored include ferrous alloys, aluminum, and harder non-ferrous metals where carbide tooling is the standard choice.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSubmicron solid carbide construction for high hardness and wear resistance in demanding bore applications\u003c\/li\u003e\n\u003cli\u003eCorner radius range of 0.0050 to 0.0080 inches for controlled internal corner geometry\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.14 inches supports small-bore work common in precision components\u003c\/li\u003e\n\u003cli\u003eMaximum bore depth of 0.25 inches suits shallow internal features\u003c\/li\u003e\n\u003cli\u003eBright finish coating provides visual inspection clarity and reduces built-up edge in certain materials\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard right-hand boring bar tool holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in right-hand boring bar holders accepting a 3\/16-inch shank diameter. Verify holder bore diameter and minimum bore diameter clearance before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and the machine is in a safe, locked-out state before inserting or adjusting the boring bar. Secure the shank firmly in the tool holder with appropriate clamping force to prevent chatter and tool pullout during the cut. Do not exceed the maximum bore depth specification, as doing so increases deflection risk and can damage the tool or workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoring Bar Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0050 to 0.0080 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0625 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: B140250R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748827005234,"sku":"B140250R","price":58.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e1b8ccfa0535b02ba15a5251ced382b9.jpg?v=1788899107","url":"https:\/\/voomisupply.com\/products\/accupro-b140250r-corner-radius-boring-bar-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}