{"product_id":"sgs-77255-corner-radius-end-mill-3-4-in-7-flute-carbide","title":"Sgs 77255 Corner Radius End Mill 3\/4 in 7 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 77255 is a solid carbide corner radius end mill designed for high-performance finishing operations in demanding metalworking applications. It features a 3\/4 inch diameter cutting edge with a 0.0600 inch corner radius, 7 flutes, and a 37-degree high helix angle that promotes efficient chip evacuation and smooth surface finishes. The tool carries a TM coating to extend tool life when cutting abrasive and hard materials. With a 1.875 inch length of cut and 4 inch overall length, the 77255 is sized for reach and rigidity in finish milling passes on steel, stainless steel, cast iron, superalloys, and titanium. It is a single-end, right-hand cut tool built for use in CNC machining centers with standard end mill toolholders.\u003c\/p\u003e\u003cp\u003eThe SGS 77255 is suited for finishing operations on steel, stainless steel, cast iron, superalloys, and titanium, as well as secondary applications in hard materials. The close pitch, variable index, and micrograin carbide substrate make it well adapted to tight-tolerance finish passes where surface integrity and edge consistency matter. It is a common choice in aerospace, die and mold, and general precision machining environments where corner radius geometry is required to reduce stress concentrations and improve part quality.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.0600 inch corner radius with a tolerance of -0.0020 to 0.0000 inches for controlled edge geometry\u003c\/li\u003e\n\u003cli\u003e7-flute, close-pitch configuration supports smooth surface finish in finishing passes\u003c\/li\u003e\n\u003cli\u003e37-degree high helix angle promotes chip evacuation in deep cuts\u003c\/li\u003e\n\u003cli\u003eTM coating provides wear resistance on steel, stainless, cast iron, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic vibration during cutting\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate delivers hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eRight-hand flute direction and right-hand cutting; straight-cylindrical shank fits standard ER and hydraulic toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard end mill toolholders. Primary workpiece materials are steel, stainless steel, cast iron, superalloys, and titanium; secondary workpiece material is hard material. Part of the SGS Series 77C corner radius end mill line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or CNC setup technician. Secure the shank fully within the toolholder to the recommended gauge line and verify runout before cutting. The h6 shank diameter tolerance is designed for close-fit toolholding systems such as ER collet chucks or hydraulic holders. This tool is not center-cutting; do not plunge straight down into solid material without a pre-drilled hole or ramping entry path.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0600 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: -0.0020 to 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: -0.0020 to 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Close\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 77C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: SGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 77255\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51735369875762,"sku":"77255","price":550.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/04a6d30fe9eba468024e5487fbf4f07d.jpg?v=1788772134","url":"https:\/\/voomisupply.com\/products\/sgs-77255-corner-radius-end-mill-3-4-in-7-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}