{"product_id":"iscar-6403799-boring-bar-submicron-solid-carbide","title":"Iscar 6403799 Boring Bar Submicron Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 6403799 is a solid carbide boring bar designed for precision internal turning and bore finishing operations. Built from submicron-grade carbide, it delivers consistent edge integrity at small bore diameters where tool deflection and wear resistance are critical. This bar handles a minimum bore diameter of 0.0790 inches and a maximum bore depth of 0.3540 inches, making it suited for tight, shallow bores that standard tooling cannot reach. The 4.00 mm shank diameter and 0.9449-inch overall length fit compact toolholding setups on CNC lathes and turn-mill centers. A 0.0020-inch corner radius supports fine surface finishes on close-tolerance features. Machinists and toolroom operators working in precision components, medical, aerospace, or instrument manufacturing will find this bar appropriate for those applications.\u003c\/p\u003e\n\u003cp\u003eThis boring bar is applied in internal diameter finishing and semi-finishing passes where bore geometry and surface finish tolerances are tight. The right-hand cutting direction suits conventional CNC lathe spindle rotation in standard boring cycles. Its small shank and short reach make it a practical choice for micro-bore work on small-diameter features in precision turned parts, hydraulic components, and instrumentation housings. It is intended for use by skilled machinists operating CNC turning equipment requiring submicron-grade tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron solid carbide construction for superior wear resistance and edge stability at small diameters\u003c\/li\u003e\n  \u003cli\u003eMinimum bore diameter of 0.0790 inches enables access to tight internal features\u003c\/li\u003e\n  \u003cli\u003eMaximum bore depth of 0.3540 inches suits shallow precision bore applications\u003c\/li\u003e\n  \u003cli\u003e4.00 mm shank diameter fits compact toolholding systems on CNC lathes and turn-mills\u003c\/li\u003e\n  \u003cli\u003e0.0020-inch corner radius supports fine surface finish requirements\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction for standard CNC lathe boring operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide boring bar for use in 4.00 mm shank toolholding systems on CNC turning centers and lathes configured for right-hand internal boring operations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine in a full stop and lockout-tagout procedure applied per shop safety standards. Secure the shank fully within the toolholder to the recommended clamping depth to minimize overhang and deflection. Avoid side-loading the bar beyond its rated bore depth, as submicron carbide is rigid but brittle under off-axis forces. Verify bore diameter and depth parameters in the CNC program before first pass.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.0790 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 0.3540 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 24.00 mm (0.9449 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eWeight\u003c\/strong\u003e: 0.04 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241601\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6403799\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51739339915570,"sku":"6403799","price":77.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a080e9d69e36a9553e2a3aaee791268b.jpg?v=1788813341","url":"https:\/\/voomisupply.com\/products\/iscar-6403799-boring-bar-submicron-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}