{"product_id":"iscar-6403679-boring-bar-0-268-in-min-bore-solid-carbide","title":"Iscar 6403679 Boring Bar 0.268 in Min Bore Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 6403679 is a solid carbide boring bar designed for internal turning and precision bore finishing on CNC lathes and manual turning centers. It cuts in a right-hand direction and accepts a minimum bore diameter of 0.268 inches, reaching a maximum bore depth of 1.339 inches. The bar measures 1.9700 inches in overall length with a 7.00 mm shank diameter. A TiN finish coating is applied to improve wear resistance and extend tool life in production environments. The 0.006-inch corner radius supports finish-pass work where tight tolerances and surface finish matter. Machinists and CNC operators install this bar as a direct OEM-grade tooling component.\u003c\/p\u003e\u003cp\u003eThis boring bar is suited for small-bore internal turning applications in precision machining shops, tool rooms, and production turning cells. Its compact geometry and solid carbide construction make it appropriate for both ferrous and non-ferrous workpiece materials where rigidity and dimensional accuracy are required. The ISCAR IC228 manufacturer grade designation indicates it is optimized for specific cutting conditions in steel and similar materials. It is sold individually and is compatible with standard boring bar holders sized for a 7.00 mm shank.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and vibration damping in small-bore applications\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.268 inches for tight-clearance internal turning\u003c\/li\u003e\n\u003cli\u003eMaximum bore depth of 1.339 inches suitable for through and blind bore work\u003c\/li\u003e\n\u003cli\u003eTiN finish coating for improved wear resistance and reduced tool-workpiece friction\u003c\/li\u003e\n\u003cli\u003e0.006-inch corner radius for finish-pass dimensional control\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard lathe setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with boring bar holders accepting a 7.00 mm shank diameter. Confirm holder bore size and clamping style before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed by a machinist or CNC operator into a compatible boring bar holder or turret station. Ensure the machine spindle is fully stopped and the machine is in an energy-isolated state before changing tooling. Verify shank diameter clearance and holder clamping torque per the machine tool manufacturer specifications. Do not exceed the recommended overhang length for the shank diameter, as excessive overhang increases deflection and reduces bore accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.268 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 1.339 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.9700 inches (50.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.006 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\u003eFinish Coating\u003c\/strong\u003e: TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: IC228\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6403679\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51741698294066,"sku":"6403679","price":109.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/42382a95e241425994b6837764f145e9.jpg?v=1788832980","url":"https:\/\/voomisupply.com\/products\/iscar-6403679-boring-bar-0-268-in-min-bore-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}