{"product_id":"allied-1c31a-0028-ci-spade-drill-insert-7-8-in-132-deg-carbide","title":"Allied 1C31A-0028-CI Spade Drill Insert 7\/8 in 132 Deg Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 1C31A-0028-CI is a spade drill insert designed for high-performance drilling in cast iron and similar K-grade workpiece materials. This insert measures 7\/8 inches in diameter and seats in a Seat Size 1 T-A series spade drill body. It is manufactured from C3 (K10) carbide and features a PVD-applied TiAlN coating, which extends tool life by reducing heat buildup and wear at the cutting edge. The 132-degree point angle is optimized for entry stability and chip control in ferrous materials. Toolroom machinists and production drilling operations in metalworking environments are the primary users of this insert.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for production drilling applications in cast iron components across industrial machining environments. The T-A series is a modular spade drill system in which the insert mounts into a reusable steel holder body. The 1C31A-0028-CI is intended for use in the T-A Seat Size 1 holder, making it compatible with that specific holder family within the T-A product line. Typical applications include drilling through-holes and blind holes in cast iron parts such as engine blocks, housings, and pump bodies on CNC machining centers, drill presses, and similar machine tools.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8 inches diameter with Seat Size 1 fitment for T-A series holders\u003c\/li\u003e\n  \u003cli\u003eC3 (K10) carbide grade engineered for cast iron and K-grade workpiece materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating applied via PVD process for improved heat resistance and extended tool life\u003c\/li\u003e\n  \u003cli\u003e132-degree point angle supports stable entry and reduced thrust in ferrous drilling\u003c\/li\u003e\n  \u003cli\u003e0.1563 inches insert thickness for consistent seating and rigidity in the holder\u003c\/li\u003e\n  \u003cli\u003eFractional inch measurement system for compatibility with standard tooling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with T-A series Seat Size 1 spade drill holder bodies. Primary workpiece material designation is cast iron (Material Grade K). Confirm holder seat size before installation to ensure proper insert fit and clamping.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert installation and replacement should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine tool before changing any cutting inserts. Use the manufacturer-specified torque wrench and insert screw to secure the insert in the holder seat — do not overtighten or substitute fasteners. Inspect the holder seat and clamping screw for wear or damage each time the insert is changed to maintain accurate positioning and safe cutting performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 7\/8 inches\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: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: C3 (K10)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeat Size\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\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: 0.1563 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron (K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Fractional Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 1C31A-0028-CI\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51728261972274,"sku":"1C31A-0028-CI","price":91.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4b032b7c9fdeee3d0dd80f467cfccd90.jpg?v=1788690134","url":"https:\/\/voomisupply.com\/products\/allied-1c31a-0028-ci-spade-drill-insert-7-8-in-132-deg-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}