{"product_id":"hertel-h59874404-boring-insert-tpcg220-5-solid-carbide-tin","title":"Hertel H59874404 Boring Insert TPCG220.5 Solid Carbide Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL H59874404 is a solid carbide boring insert in the TPCG style, designed for precision internal boring operations on CNC lathes and boring machines. It carries the HP520B manufacturer grade with a physical vapor deposition (PVD) applied titanium nitride (TiN) coating, which improves wear resistance and extends tool life across a range of workpiece materials. The insert features a 60-degree triangular geometry with an 11-degree relief angle and a 0.007 inch corner radius, making it well suited for finishing and semi-finishing passes where edge sharpness and dimensional accuracy are critical. Installation is by screw-lock clamp, and the insert is ground for left-hand cutting orientation.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use in screw-retained boring bar systems that accept TPCG-style inserts with a 1\/4 inch inscribed circle and 3\/32 inch thickness. Typical applications include finish boring of bores, housings, and precision holes in ferrous and non-ferrous materials across production and job-shop environments. The C5 carbide grade with TiN coating targets steel and cast iron at moderate to high cutting speeds. A licensed machinist or CNC tooling technician is the typical end user for this insert style.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiN coating for improved wear resistance\u003c\/li\u003e\n  \u003cli\u003eTPCG insert style with 60-degree triangular geometry and 11-degree relief angle\u003c\/li\u003e\n  \u003cli\u003e0.007 inch corner radius suited for semi-finish and finish boring passes\u003c\/li\u003e\n  \u003cli\u003eScrew-lock insert holding method for secure, repeatable seating\u003c\/li\u003e\n  \u003cli\u003eLeft-hand cutting orientation\u003c\/li\u003e\n  \u003cli\u003eC5 carbide material grade appropriate for steel and cast iron applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for screw-retained boring bar holders accepting TPCG-style inserts with a 1\/4 inch inscribed circle and 3\/32 inch thickness.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician with the machine powered down and the spindle locked before index or replacement. Use the appropriate torque wrench and insert screw specified by the boring bar manufacturer when securing the screw-lock clamp. Inspect the insert pocket and clamp screw for wear or damage before seating a new insert. Do not exceed the cutting parameters recommended for the C5 grade and TiN coating combination.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPCG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 220.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Triangle (60-degree included angle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: HP520B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0960 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0070 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: H59874404\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51734892020018,"sku":"H59874404","price":300.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f31cedf1daed8338ac3f633162be301.jpg?v=1788767688","url":"https:\/\/voomisupply.com\/products\/hertel-h59874404-boring-insert-tpcg220-5-solid-carbide-tin","provider":"Voomi Supply","version":"1.0","type":"link"}