{"product_id":"scientific-cutting-tools-tmi285-16h-thread-mill-3-8-16","title":"Scientific Cutting Tools TMI285-16H Thread Mill 3\/8-16","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMI285-16H is a solid carbide helical flute thread mill designed for cutting internal 3\/8-16 UNC threads. It features a 0.285-inch cutting diameter, a 0.3125-inch shank diameter, and a 0.775-inch length of cut, making it well suited for long-reach threading applications where standard tap access is limited. Built from submicron carbide and finished bright\/uncoated, this tool delivers consistent thread geometry in a wide range of workpiece materials. It is intended for use by machinists and CNC operators in precision threading operations on machining centers and CNC mills.\u003c\/p\u003e\u003cp\u003eThis thread mill is applied in CNC machining environments where internal UNC threads must be produced with tight tolerances and controlled cutting forces. The helical flute design and right-hand flute direction support chip evacuation during the threading cycle. With a 3.0-inch overall length and long-reach configuration, it is particularly useful when threading into deep bores or recessed features where a standard tool would not reach. Coolant-through capability is not included, so external coolant or air blast should be used at the machine setup stage.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid submicron carbide construction for extended tool life in demanding materials\u003c\/li\u003e\n\u003cli\u003e4 helical flutes with right-hand flute direction for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eLong-reach design accommodates deep-bore and recessed threading applications\u003c\/li\u003e\n\u003cli\u003e16 TPI UNC thread form for standard 3\/8-16 internal thread production\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish suitable for use across a broad range of materials\u003c\/li\u003e\n\u003cli\u003e0.775-inch length of cut supports full thread engagement in typical bore depths\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CNC machining centers capable of helical interpolation, specifically for cutting 3\/8-16 UNC internal threads with a minimum nominal diameter of 0.375 inches.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed and operated by machinists or CNC programmers on machining centers with helical interpolation capability. Ensure the spindle is at a full stop and the machine is properly locked out before changing or inspecting the tool. Use an appropriate collet or toolholder sized for the 0.3125-inch shank diameter and verify runout before beginning the threading cycle. External coolant or air blast should be directed at the cutting zone, as this tool does not support coolant-through delivery.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Mill Type\u003c\/strong\u003e: Long Reach\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch (TPI)\u003c\/strong\u003e: 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.285 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.775 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide, Submicron Grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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: 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242117\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: TMI285-16H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51980648710450,"sku":"TMI285-16H","price":223.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bf0502d2047f746bade6e64bf2b972dc_933cfa0c-6ccc-48f8-8378-057d5575b154.jpg?v=1789981700","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmi285-16h-thread-mill-3-8-16","provider":"Voomi Supply","version":"1.0","type":"link"}