{"product_id":"scientific-cutting-tools-tm345-24a-thread-mill-7-16-24","title":"Scientific Cutting Tools TM345-24A Thread Mill 7\/16-24","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TM345-24A is a straight flute internal thread mill designed for cutting 7\/16-24 UNS threads in a single helical pass. Built from submicron-grade solid carbide and coated with AlTiN+, it handles demanding threading operations in ferrous and non-ferrous materials where heat resistance and edge retention are critical. With 4 flutes and a 0.345-inch cutting diameter, it produces clean internal threads in blind or through holes. The 3\/8-inch shank diameter suits standard milling chucks and collet holders. Licensed machinists and CNC operators working in production or job shop environments are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis thread mill is intended for CNC machining centers performing internal thread milling on workpieces requiring 7\/16-24 UNS thread forms. A thread mill offers advantages over tapping in hardened materials or applications where thread depth and position require tight control. The straight flute geometry and AlTiN+ coating make it suitable for dry or minimum-quantity lubrication (MQL) cutting strategies. It is commonly used in aerospace, automotive, and industrial fixture work where thread quality and tool life are priorities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStraight flute design mills 7\/16-24 UNS internal threads with 24 TPI\u003c\/li\u003e\n\u003cli\u003eSubmicron-grade solid carbide substrate for rigidity and edge retention\u003c\/li\u003e\n\u003cli\u003eAlTiN+ coating provides heat resistance for dry or MQL cutting\u003c\/li\u003e\n\u003cli\u003e4 flutes with 0.345-inch cutting diameter for clean thread form\u003c\/li\u003e\n\u003cli\u003e0.809-inch length of cut accommodates standard thread depth requirements\u003c\/li\u003e\n\u003cli\u003e3.5-inch overall length suits extended-reach setups in a variety of fixtures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style thread mill for CNC machining centers equipped with a 3\/8-inch collet or milling chuck, producing 7\/16-24 UNS internal threads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this tool should be performed by a qualified machinist or CNC operator. Secure the 3\/8-inch shank in a properly sized collet or milling chuck torqued to the machine tool manufacturer's specification. Program the CNC controller for a helical interpolation path matching the 7\/16-24 thread pitch before engaging the cut. Inspect the cutting edges for wear or chipping before each use and replace the tool if damage is detected.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch (TPI)\u003c\/strong\u003e: 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.345 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.809 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStaggered Tooth\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4 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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TM345-24A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51971357573426,"sku":"TM345-24A","price":253.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7c1a2c8ac093dbe50be2ae156e145434.jpg?v=1789955791","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tm345-24a-thread-mill-7-16-24","provider":"Voomi Supply","version":"1.0","type":"link"}