{"product_id":"osg-70401416-square-end-mill-3-8-in-4-flute-solid-carbide","title":"Osg 70401416 Square End Mill 3\/8 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 70401416 is a solid carbide square end mill designed for precision milling operations across a range of metalworking and machining applications. Built on OSG Series 7040, it features a 3\/8 inch cutting diameter, a 7\/8 inch length of cut, and a 4-flute spiral geometry with a 30-degree helix angle. The diamond finish coating improves surface hardness and lubricity, supporting longer tool life in demanding cuts. Micrograin carbide construction provides the rigidity needed for tight tolerances, with a mill diameter tolerance of +0.000\/-0.002 inches. This tool is intended for use by machinists and tool-and-die professionals operating CNC mills and manual milling machines.\u003c\/p\u003e\u003cp\u003eThe OSG 70401416 is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials where a regular-length end mill is appropriate. The centercutting design allows plunge entry, adding versatility for pocketing and ramping operations. Right-hand cut and right-hand flute configuration make it compatible with standard spindle setups. The 3\/8 inch shank diameter fits standard collets and end mill holders commonly found in both vertical and horizontal milling setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for rigidity and dimensional stability\u003c\/li\u003e\n\u003cli\u003eDiamond finish surface treatment for improved wear resistance\u003c\/li\u003e\n\u003cli\u003e4-flute spiral design with 30-degree helix angle for balanced chip evacuation and surface finish\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry enables plunge milling and ramping\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute configuration for standard spindle compatibility\u003c\/li\u003e\n\u003cli\u003eRegular length profile with 7\/8 inch length of cut suited for general-purpose milling depths\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose OEM-style solid carbide square end mill compatible with standard 3\/8 inch collets, ER collet chucks, and end mill holders used in CNC and manual milling applications. Part of the OSG Series 7040.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify collet or holder bore size matches the 3\/8 inch shank diameter before tightening. Follow the machine manufacturer and OSG recommended speeds and feeds for the workpiece material before beginning the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7\/8 inch (0.8750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Diamond\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\u003eCentercutting\u003c\/strong\u003e: Yes\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 7040\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 70401416\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51744438649138,"sku":"70401416","price":411.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/246ae1768ffe7786006caf0a8b1bef3c.jpg?v=1788856477","url":"https:\/\/voomisupply.com\/products\/osg-70401416-square-end-mill-3-8-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}