{"product_id":"accupro-b180750r-corner-radius-boring-bar-solid-carbide","title":"Accupro B180750R Corner Radius Boring Bar Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO B180750R is a corner radius boring bar designed for precision internal turning operations on small-bore workpieces. Machined from submicron solid carbide, this right-hand-cut bar delivers the rigidity and edge retention needed to hold tight tolerances in hardened or abrasive materials. It features a bright finish coating and accepts a 1\/4-inch shank for use in compatible boring bar holders. The corner radius range of 0.0050 to 0.0080 inches makes it well suited for applications where a controlled edge break or blend radius is required at the bottom of the bore. Machinists and toolroom operators install this bar in CNC lathes, boring mills, and manual engine lathes for finish and semi-finish internal turning work.\u003c\/p\u003e\u003cp\u003eThe B180750R is sized for small-bore applications, with a minimum bore diameter of 0.18 inches and a maximum bore depth of 0.75 inches. Its overall length of 2.5 inches suits tooling setups where compact reach is required. The submicron carbide grade provides superior wear resistance compared to standard carbide grades, making it appropriate for high-production runs or when cutting difficult-to-machine alloys, stainless steels, and hardened materials. This bar is a single-unit item typically stocked in toolrooms, maintenance shops, and precision machine shops.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSubmicron solid carbide construction for enhanced hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard internal boring operations\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0050 to 0.0080 inches for controlled edge blending at bore bottom\u003c\/li\u003e\n\u003cli\u003eBright finish coating with no added coating thickness to affect dimensional accuracy\u003c\/li\u003e\n\u003cli\u003e1\/4-inch shank diameter compatible with standard small-bore toolholders\u003c\/li\u003e\n\u003cli\u003eCompact 2.5-inch overall length for tight tooling envelopes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide boring bar for use in standard 1\/4-inch boring bar holders on CNC and manual lathes configured for small internal turning operations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the machine is locked out before changing or setting tooling. Secure the 1\/4-inch shank in a compatible boring bar holder with adequate clamping force per the holder manufacturer's instructions. Do not exceed the maximum bore depth of 0.75 inches, and verify runout after installation before beginning any cutting pass.\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: 0.18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 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: B180750R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51740592210226,"sku":"B180750R","price":47.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a119e67842e2eab88a593e537116abe0.jpg?v=1788826064","url":"https:\/\/voomisupply.com\/products\/accupro-b180750r-corner-radius-boring-bar-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}