{"product_id":"allied-machine-181t-921-spade-drill-insert-59-64-in-cobalt","title":"Allied Machine 181T-.921 Spade Drill Insert 59\/64 in Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 181T-.921 is a spade drill insert designed for high-performance drilling operations across a range of ferrous and hard materials. Part of the T-A Series, this insert measures 59\/64 inches in diameter and seats into a Size 1 holder. It is manufactured from cobalt high-speed steel and features a PVD-applied TiN (titanium nitride) coating that extends tool life and reduces friction at the cutting edge. The 132-degree point angle makes it well suited for drilling into materials that require aggressive entry geometry. Installation is performed by machinists and tool-room technicians using compatible T-A Series spade drill holders.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in production machining environments where consistent hole quality and tool longevity are required. It performs across a broad range of primary workpiece materials including steel, stainless steel, cast iron, super-alloys, titanium, and hard materials. The T-A Series system is a common platform in both manual and CNC drilling applications, making this insert a versatile choice for job shops, production floors, and maintenance machining.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e59\/64 inch diameter with Size 1 seat for direct use in T-A Series holders\u003c\/li\u003e\n  \u003cli\u003eCobalt substrate provides heat and wear resistance beyond standard high-speed steel\u003c\/li\u003e\n  \u003cli\u003eTiN PVD coating reduces cutting friction and extends insert service intervals\u003c\/li\u003e\n  \u003cli\u003e132-degree point angle optimized for entry into steel, stainless, cast iron, super-alloys, titanium, and hard materials\u003c\/li\u003e\n  \u003cli\u003eInsert thickness of 0.1563 inches for precise seating and repeatability\u003c\/li\u003e\n  \u003cli\u003eSold individually — minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Allied Machine and Engineering T-A Series spade drill holders accepting a Size 1 seat. Compatible workpiece materials include steel (P), stainless steel (M), cast iron (K), super-alloys and titanium (S), and hard materials (H) per standard ISO material classification codes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis insert is installed and replaced by machinists or tool-room personnel following the holder manufacturer torque and seating procedures for the T-A Series platform. Ensure the machine spindle is fully stopped and locked out before changing inserts. Inspect the seat and clamping screw for wear or debris before seating a new insert. Use only the manufacturer-specified clamping hardware 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: 59\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeat Size\u003c\/strong\u003e: 1\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: 132 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1563 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Super-alloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\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: 181T-.921\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51748203462962,"sku":"181T-.921","price":61.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/888efb7f48a8647f85b55bb4451fb710_2e3f4581-b3d6-48ae-b1c2-ba55d9632cbc.jpg?v=1788890290","url":"https:\/\/voomisupply.com\/products\/allied-machine-181t-921-spade-drill-insert-59-64-in-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}