{"product_id":"carmex-internal-un-threadmill-insert-8-tpi-40i8unmt7","title":"Carmex Internal UN Threadmill Insert 40mm\/ 8 TPI","description":"\u003cp\u003e\u003cstrong\u003eMill-Thread Insert – UN 8 TPI, Internal\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e40 I 8 UN MT7 Mill-Thread Insert\u003c\/strong\u003e is specifically engineered for internal threading of Unified National (UN) profiles on CNC milling machines using helical interpolation. Designed to cut at 8 TPI, this insert delivers precise and reliable threading results for mechanical and industrial components using the Unified thread form. With a size 40 profile, 20 mm height, and 6.3 mm thickness, the insert ensures excellent cutting stability, clean thread geometry, and efficient chip evacuation in larger threading operations.\u003c\/p\u003e\n\u003cp\u003eManufactured from Carmex’s high-performance \u003cstrong\u003eMT7 carbide grade\u003c\/strong\u003e, the insert provides outstanding wear resistance, consistent machining performance, and extended tool life in demanding environments. For maximum threading efficiency, this insert is compatible with Carmex’s comprehensive 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 formats, with options for carbide shanks and internal coolant supply. These holders are designed to match insert sizes and ensure secure clamping and high-performance machining.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrdering Code\u003c\/strong\u003e: 40 I 8 UN MT7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Profile\u003c\/strong\u003e: UN – Unified National\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch (TPI)\u003c\/strong\u003e: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH (Height)\u003c\/strong\u003e: 20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT (Thickness)\u003c\/strong\u003e: 6.3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbide Grade\u003c\/strong\u003e: MT7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Type\u003c\/strong\u003e: Internal-use only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Unified internal threads for industrial and heavy-duty mechanical assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Advantage\u003c\/strong\u003e: High-performance threading with SR series toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCarmex Precision Tools Ltd.\u003c\/strong\u003e is globally recognized for its advanced threading solutions. The company offers a full range of Thread Turning inserts, Mill-Thread tools, Spiral Mill-Thread, Solid Carbide threadmills, and matching SR Series Toolholders—ensuring full compatibility and performance from toolholder to insert.\u003c\/p\u003e","brand":"CARMEX PRECISION TOOLS LTD","offers":[{"title":"Default Title","offer_id":7304994029603,"sku":"40I8UNMT7","price":298.31,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2514\/1424\/files\/carmex-precision-tools-ltd-carmex-internal-un-threadmill-insert-40mm-8-tpi-1167079341.jpg?v=1768216628","url":"https:\/\/wallersindustrialonline.com\/products\/carmex-internal-un-threadmill-insert-8-tpi-40i8unmt7","provider":"Wallers Industrial Hardware ","version":"1.0","type":"link"}