{"product_id":"vargus-64427-carbide-thread-mill-insert-un-28-tpi","title":"Vargus 64427 Carbide Thread Mill Insert Un 28 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VARGUS 64427 is a carbide thread mill insert designed for external UN thread milling operations at 28 teeth per inch (TPI). Built from micrograin carbide in the VK2 material grade, this insert offers consistent cutting performance in demanding threading applications. The bright uncoated finish suits materials where coating adhesion or heat buildup is a concern. The 3E insert style features an inscribed circle diameter of 0.3750 inches, making it suitable for thread milling on CNC machining centers where precision thread form and tool life are priorities. Licensed machinists and CNC programmers working in production or job-shop environments are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis insert is applied in external UN thread milling on CNC machining centers and mill-turn equipment. The UN thread standard covers Unified National thread forms common in general industrial, aerospace, and mechanical assembly work. At 28 TPI, this insert is suited for finer-pitch threading on smaller fastener profiles and precision components. It is sold individually per package, with a minimum order quantity of 10 units, making it appropriate for shops maintaining consistent insert stock for repeat threading programs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin carbide substrate in VK2 grade for consistent edge integrity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish produced via PVD process, suitable for applications where an uncoated edge is preferred\u003c\/li\u003e\n  \u003cli\u003eExternal UN thread form at 28 TPI for fine-pitch unified national thread milling\u003c\/li\u003e\n  \u003cli\u003e3E insert style with 0.3750-inch inscribed circle diameter for precise tool body seating\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package with 10-unit minimum order quantity for controlled inventory replenishment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement insert for VARGUS thread mill toolholders accepting the 3E insert style. Confirm toolholder seat geometry and insert style designation before ordering.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread mill inserts are installed and replaced by machinists or CNC tooling technicians. Power down and lock out the spindle before seating or replacing inserts. Use the correct torque wrench and insert screw specified by the toolholder manufacturer  -  do not overtighten, as micrograin carbide inserts are brittle under clamping stress. Verify insert seating and runout with a dial indicator before initiating a threading program.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 3E\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: VK2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 28 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Finish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\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: VARGUS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 64427\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VARGUS","offers":[{"title":"Default Title","offer_id":67914726703410,"sku":"64427","price":598.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cde161c7e86357528b24594d6e6dc77c_be4ffd2e-2108-4557-9cfc-2d1f2e213b81.jpg?v=1791250703","url":"https:\/\/voomisupply.com\/products\/vargus-64427-carbide-thread-mill-insert-un-28-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}