{"product_id":"allied-machine-456h-0308-spade-drill-insert-3-1-4-in-cobalt-144-pt","title":"Allied Machine 456H-0308 Spade Drill Insert 3-1\/4 in Cobalt 144 Pt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 456H-0308 is a cobalt spade drill insert designed for deep-hole and high-production drilling applications. It features a 3-1\/4 inch cutting diameter, a 144-degree point angle, and a Seat Size 6 shank interface. The insert is finished with an AM200 PVD coating, which improves wear resistance and heat dissipation at the cutting edge. At 0.4375 inches thick, it fits the GEN2 T-A modular spade drill system. This insert is installed by machinists and tooling technicians in CNC turning centers, machining centers, and manual drill presses where replaceable-tip spade tooling is in use.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for production drilling in steel, stainless steel, cast iron, super-alloys, titanium, and hard materials, covering ISO work material codes P, M, K, S, and H. Typical applications include large-diameter hole production in job shops, aerospace component manufacturing, oilfield component machining, and heavy industrial fabrication where consistent hole geometry and insert interchangeability are priorities. The GEN2 T-A holder system allows fast insert changes without removing the holder body from the spindle.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-1\/4 inch cutting diameter for large-bore drilling without a boring bar setup\u003c\/li\u003e\n  \u003cli\u003e144-degree point angle reduces thrust and improves chip formation in tough materials\u003c\/li\u003e\n  \u003cli\u003eCobalt substrate provides elevated hot hardness and toughness compared to standard HSS\u003c\/li\u003e\n  \u003cli\u003eAM200 PVD coating extends edge life when drilling steel, stainless, and super-alloys\u003c\/li\u003e\n  \u003cli\u003eSeat Size 6 interface for direct use in compatible GEN2 T-A spade drill holders\u003c\/li\u003e\n  \u003cli\u003e0.4375 inch insert thickness for rigid, stable seating in the holder pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in ALLIED MACHINE AND ENGINEERING GEN2 T-A spade drill holders with a Seat Size 6 pocket. Compatible with work materials including steel, stainless steel, cast iron, super-alloys, titanium, and hard materials (ISO codes P, M, K, S, H).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or removing the insert. Use the manufacturer-recommended torque driver and insert screw to secure the blade in the holder pocket — do not use impact tools on insert screws. Inspect the holder seat for wear, chips, or debris before every insert change to maintain hole geometry and prevent premature insert failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 3-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeat Size\u003c\/strong\u003e: 6\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\u003eSeries\u003c\/strong\u003e: GEN2 T-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AM200\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: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Super-alloys, Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\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: 456H-0308\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51748732207410,"sku":"456H-0308","price":162.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dc670b5a7e78abdbb19f06aba5b6e73c_0c1e8199-2dc5-449d-b116-8ad0ae0d2527.jpg?v=1788897449","url":"https:\/\/voomisupply.com\/products\/allied-machine-456h-0308-spade-drill-insert-3-1-4-in-cobalt-144-pt","provider":"Voomi Supply","version":"1.0","type":"link"}