{"product_id":"internal-tool-68-1280-corner-rounding-end-mill-1-4-in","title":"Internal Tool 68-1280 Corner Rounding End Mill 1\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe INTERNAL TOOL 68-1280 is a solid carbide corner rounding end mill designed to produce consistent radius profiles on workpiece edges. It features a 1\/4-inch mill diameter, a 1\/16-inch corner radius, and three straight flutes in a right-hand cutting direction. The double-end configuration doubles usable tool life before replacement. With a micrograin carbide construction and bright uncoated finish, this end mill delivers reliable edge quality across a broad range of materials. It is used in CNC machining centers and manual milling machines by machinists and tool-and-die professionals in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for edge rounding and radius profiling operations on steel, stainless steel, cast iron, non-ferrous metals, super alloys, and titanium. The 1\/4-inch shank diameter fits standard collets and end mill holders common to both vertical and horizontal milling setups. Its 2.5-inch overall length provides sufficient reach for most standard fixturing configurations without excessive overhang. Applications include deburring, corner break operations, and decorative or functional radius blending on machined components across aerospace, automotive, and general manufacturing work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-end design extends tool life by providing two usable cutting ends\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide construction for hardness and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003e1\/16-inch corner radius for consistent, repeatable edge profiles\u003c\/li\u003e\n  \u003cli\u003eThree straight flutes with right-hand helix for smooth chip flow\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish compatible with a wide range of workpiece materials including super alloys and titanium\u003c\/li\u003e\n  \u003cli\u003eCylindrical 1\/4-inch shank fits standard collet and end mill holder tooling\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, super alloys, and titanium. Compatible with any milling machine or CNC machining center accepting a 1\/4-inch cylindrical shank end mill holder or collet.\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 spindle fully stopped and the machine in a locked-out, de-energized state per applicable safety procedures. Confirm the collet or tool holder is clean and undamaged before seating the shank. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material. Inspect both cutting ends before use and do not run a chipped or damaged tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/16 inch (0.0625 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Diameter\u003c\/strong\u003e: 0.0900 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated (Bright)\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\u003eSingle or Double End\u003c\/strong\u003e: Double End\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: 68\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.20 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 68-1280\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INTERNAL TOOL","offers":[{"title":"Default Title","offer_id":68386710389042,"sku":"68-1280","price":105.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1387a1cbc85e69f037e155e448d18e22_8f6f51ad-f319-451a-ac1f-ac9cdb197cdb.jpg?v=1793903484","url":"https:\/\/voomisupply.com\/products\/internal-tool-68-1280-corner-rounding-end-mill-1-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}