{"product_id":"carmex-internal-un-threadmill-insert-40mm-4-tpi","title":"Carmex Internal UN Threadmill Insert 40mm\/ 4 TPI","description":"\u003cp\u003e\u003cstrong\u003eMill-Thread Insert – UN 4 TPI, Internal\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe \u003cstrong\u003e40 I 4 UN MT7 Mill-Thread Insert\u003c\/strong\u003e is specifically designed for internal threading of Unified National (UN) profiles on CNC milling machines using helical interpolation. Designed to cut at 4 TPI, this insert delivers accurate and stable performance for large-pitch Unified threads in heavy-duty mechanical and industrial components. With a size 40 profile, 20 mm height, and 6.3 mm thickness, it provides excellent tool rigidity, clean thread forms, and reliable chip evacuation during deep or large-diameter threading operations.\u003c\/p\u003e\r\n\u003cp\u003eManufactured from Carmex’s high-performance \u003cstrong\u003eMT7 carbide grade\u003c\/strong\u003e, the insert ensures superior wear resistance, dimensional accuracy, and consistent tool life across demanding production cycles. For optimal results, it is compatible with Carmex’s full range of \u003ca href=\"https:\/\/wallersindustrialonline.com\/collections\/threadmills\" title=\"Threadmill Toolholders\"\u003e\u003cstrong\u003eSR series toolholders\u003c\/strong\u003e\u003c\/a\u003e—available in single, twin, and multi-insert designs, including options with internal coolant and reinforced carbide shanks for added stability and precision.\u003c\/p\u003e\r\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eOrdering Code\u003c\/strong\u003e: 40 I 4 UN MT7\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal Threading\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eThread Profile\u003c\/strong\u003e: UN – Unified National\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003ePitch (TPI)\u003c\/strong\u003e: 4\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 40\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eH (Height)\u003c\/strong\u003e: 20 mm\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eT (Thickness)\u003c\/strong\u003e: 6.3 mm\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eCarbide Grade\u003c\/strong\u003e: MT7\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eInsert Type\u003c\/strong\u003e: Internal-use only\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Unified internal threads for large-diameter or heavy-duty components\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cstrong\u003eKey Advantage\u003c\/strong\u003e: Robust threading performance with compatibility for SR series toolholders\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eCarmex Precision Tools Ltd.\u003c\/strong\u003e is globally recognized for its advanced threading solutions. The company offers a complete line of Thread Turning inserts, Mill-Thread tools, Spiral Mill-Thread, Solid Carbide threadmills, and SR Series Toolholders—ensuring seamless performance from insert to holder in any threading application.\u003c\/p\u003e","brand":"CARMEX PRECISION TOOLS LTD","offers":[{"title":"Default Title","offer_id":51245422936100,"sku":"40I4UNMT7","price":262.51,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/5598\/3396\/files\/carmex-precision-tools-ltd-internal-threadmill-insert-carmex-internal-un-threadmill-insert-40mm-4-tpi-50700018-1198296229.jpg?v=1786422857","url":"https:\/\/www.layerspecdynamics.com\/de\/products\/carmex-internal-un-threadmill-insert-40mm-4-tpi","provider":"LayerSpec Dynamics","version":"1.0","type":"link"}