{"product_id":"harvey-tool-73090-c4-square-end-mill-0-090in-4-flute-carbide","title":"Harvey Tool 73090-C4 Square End Mill 0.090in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 73090-C4 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.090-inch cutting diameter and four flutes, this end mill delivers clean, accurate cuts in a compact form factor. The 30-degree helix angle improves chip evacuation and reduces cutting forces during peripheral and slot milling. An amorphous diamond coating increases surface hardness and lubricity, extending tool life in abrasive and non-ferrous materials. The 0.125-inch shank diameter fits standard collet chucks commonly used in CNC machining centers and manual milling machines. Licensed machinists and CNC operators install this tool in production and prototype environments.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for small-diameter finish milling, contouring, and slotting in non-ferrous metals, plastics, composites, and graphite. The centercutting geometry allows plunge entry, making it versatile for complex toolpaths. The right-hand cut and right-hand flute configuration is the standard setup for conventional CNC spindle rotation. With a 0.27-inch length of cut and 1.5-inch overall length, this tool is optimized for shallow-to-moderate depth-of-cut applications where rigidity and runout control are critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAmorphous diamond coating for enhanced wear resistance and reduced friction on abrasive materials\u003c\/li\u003e\n\u003cli\u003eFour-flute design increases feed rate capability and improves surface finish compared to two-flute configurations\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes efficient chip evacuation and smoother cutting action\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows plunge milling and ramping entry\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction provides superior rigidity and heat resistance over high-speed steel\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard CNC and manual mill spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC machining centers and manual milling machines equipped with collets or tool holders accepting a 0.125-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Secure the shank fully into a collet or end mill holder and torque to the machine manufacturer's specification before starting the spindle. Verify runout with a dial indicator before beginning production cuts. Never exceed the manufacturer's recommended speeds and feeds for the coating and material being machined.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.090 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.27 inches (17\/64 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Amorphous 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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 73090-C4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51748801970482,"sku":"73090-C4","price":58.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9184774782667b791afe87d92ba49005_041423fe-2183-4b53-a077-6793cdc2340c.jpg?v=1788898615","url":"https:\/\/voomisupply.com\/products\/harvey-tool-73090-c4-square-end-mill-0-090in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}