{"product_id":"internal-tool-170-1220-corner-rounding-end-mill-3-8-in","title":"Internal Tool 170-1220 Corner Rounding End Mill 3\/8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe INTERNAL TOOL 170-1220 is a solid carbide corner rounding end mill designed to machine precise convex radii on workpiece edges. With a 1\/8-inch (0.1250-inch) corner radius and a 3\/8-inch mill diameter, it generates smooth, consistent radii on steel, stainless steel, cast iron, non-ferrous metals, and super alloys including titanium. The 3-flute, single-end geometry runs in a right-hand cutting direction with straight flutes and a 0-degree helix angle. Overall length is 4 inches with a cylindrical 3\/8-inch shank. Machinists and tool and die professionals install this end mill in CNC machining centers and manual mills for edge-finishing and profile work.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for edge-rounding operations on ferrous and non-ferrous components in production and job-shop environments. Typical applications include deburring sharp corners on steel and stainless steel parts, finishing cast iron surfaces, and profiling non-ferrous and titanium aerospace or industrial components. The uncoated bright finish makes it easy to inspect for wear. A tip diameter of 0.1150 inch and a 0-degree helix angle provide stable, predictable contact during radial cutting passes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/8-inch (0.1250-inch) corner radius for consistent edge rounding on precision parts\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and long tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e3-flute, right-hand cut and right-hand flute direction for smooth chip evacuation\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish allows visual wear inspection and suits a wide range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with 4-inch overall length and 3\/8-inch cylindrical shank\u003c\/li\u003e\n  \u003cli\u003eCompatible with steel, stainless steel, cast iron, non-ferrous metal, and super alloys including titanium\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on steel, stainless steel, cast iron, non-ferrous metals, and super alloys including titanium. Fits standard 3\/8-inch collets and end mill holders on CNC machining centers and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following standard toolholding procedures. Ensure the machine spindle is fully stopped and the machine is powered down or placed in a safe state before changing tooling. Use a properly sized collet or end mill holder that matches the 3\/8-inch shank diameter and torque the retention mechanism per the toolholder manufacturer specifications. Verify runout after installation before beginning a cutting operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/8 inch (0.1250 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Diameter\u003c\/strong\u003e: 0.1150 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated (Bright)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Super Alloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 170\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.55 pounds\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: INTERNAL TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 170-1220\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INTERNAL TOOL","offers":[{"title":"Default Title","offer_id":67910508020018,"sku":"170-1220","price":209.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f5f5030a5d8a242e1b479baba3bdffd.jpg?v=1791198419","url":"https:\/\/voomisupply.com\/products\/internal-tool-170-1220-corner-rounding-end-mill-3-8-in","provider":"Voomi Supply","version":"1.0","type":"link"}