{"product_id":"allied-machine-131t-859-spade-drill-insert-55-64-in-hss-tin","title":"Allied Machine 131T-.859 Spade Drill Insert 55\/64 in Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ALLIED MACHINE AND ENGINEERING 131T-.859 is a spade drill insert designed for high-throughput hole-making operations in industrial and production machining environments. Built from M4 grade High Speed Steel with a Physical Vapor Deposition (PVD) TiN coating, this insert delivers increased surface hardness and extended tool life compared to uncoated alternatives. It measures 55\/64 inches in diameter and seats in a Size 1 holder, with a 132-degree point angle optimized for controlled entry and reduced thrust in a range of workpiece materials. Installation is performed by qualified machinists and toolroom technicians.\u003c\/p\u003e\n\u003cp\u003eThis spade drill insert is suited for drilling operations in steel, cast iron, and non-ferrous metals, covering workpiece material codes P, K, and N. It fits the T-A Series spade drill system, which uses interchangeable inserts and dedicated blade holders to allow fast insert changes without removing the holder from the spindle. Typical applications include production drilling on CNC machining centers, turret lathes, and drill presses where high metal removal rates and consistent hole quality are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM4 High Speed Steel construction for toughness in interrupted cuts and variable feed conditions\u003c\/li\u003e\n  \u003cli\u003eTiN PVD coating increases surface hardness and reduces friction for longer insert life\u003c\/li\u003e\n  \u003cli\u003e132-degree point angle provides aggressive cutting geometry suited for steel and cast iron entry\u003c\/li\u003e\n  \u003cli\u003e55\/64 inch diameter fits Size 1 T-A Series blade holders for fast field replacement\u003c\/li\u003e\n  \u003cli\u003eCompatible with steel, cast iron, and non-ferrous metal workpieces in a single insert grade\u003c\/li\u003e\n  \u003cli\u003e0.1563 inch insert thickness maintains consistent seating and repeatable depth control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with T-A Series Size 1 spade drill blade holders. Compatible with primary workpiece materials including steel (P), cast iron (K), and non-ferrous metals (N).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSpade drill inserts are installed and replaced by machinists or toolroom technicians following the blade holder manufacturer torque and clamping procedures for the T-A Series system. Always disengage the spindle and confirm the machine is in a safe, locked-out state before handling or replacing inserts. Inspect the blade pocket and seating surfaces for chips or wear before installing a new insert. Follow all applicable shop safety and machine guarding requirements during setup.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 55\/64 inches\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\u003ePoint Angle\u003c\/strong\u003e: 132 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M4\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, Cast Iron, Non-Ferrous Metal\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: 131T-.859\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED MACHINE AND ENGINEERING","offers":[{"title":"Default Title","offer_id":51754447044914,"sku":"131T-.859","price":53.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/888efb7f48a8647f85b55bb4451fb710_a2976f4f-105a-4ee0-aec4-a0ad52e4ff7d.jpg?v=1788945446","url":"https:\/\/voomisupply.com\/products\/allied-machine-131t-859-spade-drill-insert-55-64-in-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}