{"product_id":"allied-machine-21411-0004-indexable-spade-drill-taper-shank","title":"Allied Machine 21411-0004 Indexable Spade Drill Taper Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 21411-0004 is an indexable spade drill designed for high-performance drilling in a wide range of workpiece materials. Built to Series HP-A standards, it accepts interchangeable spade drill inserts and delivers consistent hole quality across multiple drilling cycles. The drill body features a straight flute geometry and a 4MT taper shank with a shank diameter of 1.231 inches, providing rigid, accurate positioning in compatible taper-socket spindles. With a maximum drill depth of 3 inches and an overall length of 7-7\/8 inches, this tool is sized for short-reach applications on lathes, drill presses, and machining centers. Installation and operation are performed by machining professionals in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis drill body covers a diameter range of 31\/32 inches to 1-3\/8 inches, making it suitable for a broad set of general-purpose and production drilling tasks. The Series HP-A designation places it in Allied Machine and Engineering's high-performance lineup, optimized for universal workpiece materials including cast iron, steel, non-ferrous metals, and non-metallic materials. The straight flute design suits applications where chip evacuation and rigidity are the primary concerns. This configuration ships without through-coolant capability, so external coolant or flood cooling is the recommended approach for chip management and heat control.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter range: 31\/32 inches to 1-3\/8 inches for versatile insert sizing\u003c\/li\u003e\n  \u003cli\u003e4MT taper shank with 1.231-inch shank diameter for secure spindle engagement\u003c\/li\u003e\n  \u003cli\u003eStraight flute design supports rigidity in short-reach drilling operations\u003c\/li\u003e\n  \u003cli\u003eSeries HP-A high-performance body rated for universal workpiece material codes K, M, N, and P\u003c\/li\u003e\n  \u003cli\u003eMaximum drill depth of 3 inches with a body length of 3-25\/32 inches and flute length of 3 inches\u003c\/li\u003e\n  \u003cli\u003eNo through-coolant — compatible with external or flood coolant delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard-fit drill body for Series HP-A indexable spade drill systems accepting 4MT taper shank tooling. Compatible with spade drill inserts in the 31\/32-inch to 1-3\/8-inch diameter range for this series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists. Ensure the machine spindle is fully powered down and locked out before mounting or removing the drill body from the taper socket. Clean the taper bore and shank surfaces thoroughly before seating to ensure full contact and accurate runout. Follow the machine tool manufacturer's draw-bar torque and retention requirements for 4MT tooling; do not exceed the recommended axial depth of cut for the selected insert grade.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Drill Diameter\u003c\/strong\u003e: 31\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drill Diameter\u003c\/strong\u003e: 1-3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drill Depth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 3-25\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 4-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Taper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Taper Size\u003c\/strong\u003e: 4MT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.231 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HP-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal (K, M, N, P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length\u003c\/strong\u003e: Short\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.8 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: 21411-0004\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51730329141554,"sku":"21411-0004","price":317.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/863bf06ac595fd890ef938900f73af07_e6b6bcbc-a3d7-46c8-b6bd-33022c7dc9da.jpg?v=1788715459","url":"https:\/\/voomisupply.com\/products\/allied-machine-21411-0004-indexable-spade-drill-taper-shank","provider":"Voomi Supply","version":"1.0","type":"link"}