{"product_id":"helical-solutions-48621-square-end-mill-3-4-in-3-flute-carbide","title":"Helical Solutions 48621 Square End Mill 3\/4 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HELICAL SOLUTIONS 48621 is a 3-flute solid carbide square end mill engineered for aluminum milling applications. It features a 3\/4-inch cutting diameter, a 1-5\/8-inch length of cut, and a 40-degree helix angle that promotes efficient chip evacuation and reduces heat buildup in non-ferrous materials. The variable pitch (variable index) flute geometry helps dampen vibration during aggressive cuts, improving surface finish and extending tool life. A Zplus coating adds lubricity and wear resistance suited to aluminum, copper, and other gummy non-ferrous alloys. Single-end design. Right-hand cut and right-hand flute direction. Installed by machinists and CNC operators in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for high-speed aluminum milling in CNC machining centers and manual knee mills where chip load, feed rate, and spindle speed are dialed in for non-ferrous work. The 40-degree helix is optimized to pull chips up and away from the cut, reducing re-cutting and built-up edge common in aluminum. The 3\/4-inch straight cylindrical shank fits standard ER collet chucks, end mill holders, and hydraulic toolholders of the same bore size. The 4-inch overall length provides adequate reach for the majority of standard workpiece setups without sacrificing rigidity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4-inch cutting diameter with 1-5\/8-inch length of cut for substantial material removal\u003c\/li\u003e\n  \u003cli\u003e40-degree helix angle optimized for aluminum chip evacuation\u003c\/li\u003e\n  \u003cli\u003eVariable index (variable pitch) flute spacing reduces chatter and harmonic vibration\u003c\/li\u003e\n  \u003cli\u003eZplus coating provides lubricity and edge protection in non-ferrous alloys\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting geometry allows plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction delivers rigidity and heat resistance beyond HSS tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in the HELICAL SOLUTIONS End Mills for Aluminum series — 3 Flute, Square, 40-degree Helix, Variable Pitch. Fits any toolholder with a 3\/4-inch bore. Suited to aluminum and other non-ferrous materials in CNC and conventional milling setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before changing tooling. Seat the straight cylindrical shank fully into the toolholder bore and torque the retention mechanism to the toolholder manufacturer specification. Verify runout with a dial indicator after clamping — excessive runout accelerates edge wear and reduces surface finish quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inches (0.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-5\/8 inches (1.625 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches (0.75 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 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: Zplus\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\u003eFlute Type\u003c\/strong\u003e: Helical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\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\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Style\u003c\/strong\u003e: Single End, Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.71 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HELICAL SOLUTIONS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 48621\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51755208966450,"sku":"48621","price":360.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/827387c70c79aafd13d83aa48ef6aae0_25e3c7db-820d-4640-a59d-bcff40bb5586.jpg?v=1788952216","url":"https:\/\/voomisupply.com\/products\/helical-solutions-48621-square-end-mill-3-4-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}