{"product_id":"sgs-31189-square-end-mill-1-2-in-4-flute-solid-carbide-altin","title":"Sgs 31189 Square End Mill 1\/2 in 4 Flute Solid Carbide Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 31189 is a double-end, square-profile end mill ground from micrograin solid carbide and finished with an AlTiN (aluminum titanium nitride) coating. It features a 1\/2 inch cutting diameter, a 5\/8 inch length of cut, and a 30-degree right-hand helix. With four spiral flutes and a straight cylindrical shank, this tool is built for rigidity and heat resistance in demanding milling operations. At 3 inches overall length and stub classification, it offers the stiffness needed for accurate slotting, profiling, and peripheral milling. Machinists and tool-and-die professionals reach for this geometry when material removal rates and tool life both matter.\u003c\/p\u003e\u003cp\u003eThe SGS 31189 is suited for milling a broad range of workpiece materials classified under industry material codes H, K, M, N, P, and S  -  covering hardened steels, cast irons, stainless steels, non-ferrous metals, carbon steels, and high-temperature alloys. The double-end design extends tool value by providing two usable cutting ends. Stub length geometry keeps deflection minimal in close-tolerance work on vertical and horizontal machining centers, as well as manual knee mills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide substrate for superior hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003eAlTiN coating extends tool life in high-heat, dry, and near-dry machining conditions\u003c\/li\u003e\n\u003cli\u003eDouble-end design provides two cutting ends per tool\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand helix promotes smooth chip evacuation and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge entry into the workpiece\u003c\/li\u003e\n\u003cli\u003eStub length with 5\/8 inch LOC minimizes deflection in tight setups\u003c\/li\u003e\n\u003cli\u003eMill diameter tolerance of +0.000 \/ -0.002 inches ensures consistent fit and finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eThe SGS 31189 is compatible with workpiece materials designated under material codes H, K, M, N, P, and S, including hardened steels, cast irons, stainless steels, non-ferrous metals, carbon steels, and high-temperature alloys. It is designed for use in standard straight-shank tool holders and collet systems accepting a 1\/2 inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis end mill is installed by machinists and CNC operators using an ER collet chuck, end mill holder, or equivalent straight-shank tool holder. Verify holder runout before use, as excessive runout accelerates edge wear on carbide tooling. Power down and lock out the spindle before changing tools. Follow machine manufacturer guidelines for speed and feed selection based on workpiece material and depth of cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide, Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble End\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.00000 \/ -0.00043 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: 31189\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51739723989298,"sku":"31189","price":166.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ac5df1ae4fc3fe91d818b7eb9d2fa129.jpg?v=1788818244","url":"https:\/\/voomisupply.com\/products\/sgs-31189-square-end-mill-1-2-in-4-flute-solid-carbide-altin","provider":"Voomi Supply","version":"1.0","type":"link"}