{"product_id":"allied-machine-155t-0224-spade-drill-insert-2-3-4-in-cobalt-tin","title":"Allied Machine 155T-0224 Spade Drill Insert 2-3\/4 in Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 155T-0224 is a cobalt spade drill insert designed for high-performance hole-making in demanding materials. Part of the T-A Series, this insert measures 2-3\/4 inches in diameter and fits a Seat Size 5 holder. It features a Physical Vapor Deposition (PVD) titanium nitride (TiN) coating applied over a cobalt substrate, which increases surface hardness and extends tool life in abrasive cutting conditions. The 144-degree point angle geometry is suited for controlled entry and reduced thrust in tougher workpiece materials. Installed by machinists and metalworking professionals, this insert is a direct replacement component for compatible T-A Series spade drill bodies.\u003c\/p\u003e\n\u003cp\u003eThis insert is engineered for use with T-A Series Seat Size 5 spade drill holders in CNC machining centers, lathes, and production drilling applications. It is rated for use in steel, stainless steel, cast iron, super-alloys, and titanium workpieces, corresponding to ISO material groups P, M, K, and S. Typical applications include through-hole and blind-hole drilling in structural components, flanges, and heavy manufacturing parts where insert changeability and consistent hole quality are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e2-3\/4 inch diameter, Seat Size 5  -  direct fit for compatible T-A Series spade drill bodies\u003c\/li\u003e\n  \u003cli\u003eCobalt substrate provides enhanced toughness and heat resistance compared to standard HSS\u003c\/li\u003e\n  \u003cli\u003ePVD TiN coating increases surface hardness and reduces built-up edge in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e144-degree point angle geometry reduces thrust and improves centering on entry\u003c\/li\u003e\n  \u003cli\u003eRated for steel, stainless steel, cast iron, super-alloys, and titanium (ISO groups P, M, K, S)\u003c\/li\u003e\n  \u003cli\u003eInsert design allows quick changeover without removing the drill body from the machine spindle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with T-A Series Seat Size 5 spade drill holders. Compatible workpiece materials include steel, stainless steel, cast iron, super-alloys, and titanium.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before changing inserts. Seat the insert fully into the holder pocket and torque the clamping screw to the holder manufacturer specification  -  do not estimate clamp force by feel alone. Inspect the insert seat and holder pocket for chips or debris before seating to avoid insert rocking or premature failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 2-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeat Size\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 144 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.47 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3.74 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.48 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Super-alloys, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Material Groups\u003c\/strong\u003e: P, M, K, S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ALLIED MACHINE AND ENGINEERING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 155T-0224\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51740752707890,"sku":"155T-0224","price":128.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e38092399ea9db86d207e7fcf05e5e0.jpg?v=1788827204","url":"https:\/\/voomisupply.com\/products\/allied-machine-155t-0224-spade-drill-insert-2-3-4-in-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}