{"product_id":"accupro-12183687-square-end-mill-3-8-in-4-flute-solid-carbide","title":"Accupro 12183687 Square End Mill 3\/8 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12183687 is a solid carbide square end mill designed for precision milling operations in metal, composites, and other hard materials. It features a 3\/8 inch cutting diameter, a 1-1\/2 inch length of cut, and a 6 inch overall length that puts it in the extra-long category — useful when reach is a factor in deep-pocket or long-reach setups. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. With four flutes and a spiral flute geometry, it delivers a balance of material removal rate and surface finish quality. Machinists and tool-and-die professionals are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for ferrous and non-ferrous machining applications where a standard-reach tool cannot reach the workpiece. The extra-long overall length of 6 inches makes it applicable in mold work, deep-cavity milling, and setups requiring extended tool projection. The centercutting design allows plunge entry directly into the workpiece without a pre-drilled hole. Right-hand cut and right-hand flute configuration is standard for conventional CNC and manual milling machine spindles. The uncoated micrograin carbide substrate is appropriate for dry or wet machining where a coated tool is not specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for rigidity and edge retention in demanding cuts\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle promotes chip evacuation and reduces heat buildup at the cutting edge\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eExtra-long 6 inch OAL provides reach for deep-cavity and long-projection setups\u003c\/li\u003e\n\u003cli\u003eFour-flute spiral design balances material removal rate with surface finish quality\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard CNC and manual milling spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/8 inch shank end mill for use in collet chucks, end mill holders, and milling chucks accepting 3\/8 inch shank tooling on CNC machining centers and manual vertical mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer's tool-holding specifications. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Verify runout at the tool tip after clamping, as extra-long tools are more sensitive to runout-induced deflection and premature wear. Consult the machine tool's programming or operations manual for recommended feeds and speeds appropriate to the 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: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/2 inches (1.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\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: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12183687\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51753208545586,"sku":"12183687","price":83.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f4e9af0b4981ba0d999d9af53d21604.jpg?v=1788933903","url":"https:\/\/voomisupply.com\/products\/accupro-12183687-square-end-mill-3-8-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}