{"product_id":"seco-17016216-roughing-end-mill-1-1-4-in-6-flute-cobalt","title":"Seco 17016216 Roughing End Mill 1-1\/4 in 6 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 17016216 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and coated with TiCN (Titanium Carbonitride), it delivers improved wear resistance and heat tolerance compared to standard HSS tooling. The 1.25-inch mill diameter pairs with six spiral flutes and a 30-degree maximum helix angle to produce efficient chip evacuation and reduced chatter during heavy cuts. With a 3-inch length of cut and 5.5-inch overall length, this tool is suited for roughing passes where stock removal rate matters more than surface finish. Right-hand cutting and right-hand flute direction are standard. This tool is installed and run by machinists and CNC operators working in job shops, tool rooms, and production environments.\u003c\/p\u003e\u003cp\u003eThis roughing end mill is used in vertical and horizontal milling machines as well as CNC machining centers handling ferrous metals and tough alloys. The M42 cobalt substrate makes it a practical choice when machining stainless steel, alloy steel, and other work-hardening materials that would prematurely dull standard M2 HSS tools. The TiCN coating extends tool life in dry or minimal-lubrication conditions. The shank diameter matches the mill diameter at 1.25 inches, making it compatible with standard R8, CAT, BT, and direct-mount toolholders of that bore size. It is not center-cutting and is not intended for plunge entry.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt steel construction for improved hot hardness in tough alloys\u003c\/li\u003e\n\u003cli\u003eTiCN coating for enhanced wear resistance and reduced built-up edge\u003c\/li\u003e\n\u003cli\u003eSix spiral flutes with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003e3-inch length of cut and 5.5-inch overall length for deep roughing passes\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand spiral — standard configuration for conventional milling setups\u003c\/li\u003e\n\u003cli\u003eNon-center-cutting design — requires a pre-drilled or pre-bored entry point\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit roughing end mill for standard 1-1\/4-inch bore milling toolholders; no specific OEM system compatibility was provided in the product data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or CNC operator. Always secure the shank fully within the toolholder to the minimum insertion depth specified by the holder manufacturer. Confirm spindle speed and feed rate are appropriate for the workpiece material before engaging the cut. Because this tool is not center-cutting, do not use it for direct plunge milling — always enter from the workpiece edge or a pre-machined pocket.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Helix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Cutting\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.006 to -0.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.062 to -0.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: REM445\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: SECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 17016216\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51557500158258,"sku":"17016216","price":305.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/51d75486f24626b24a9f4cb65e639552.jpg?v=1786389563","url":"https:\/\/voomisupply.com\/products\/seco-17016216-roughing-end-mill-1-1-4-in-6-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}