5PCS KENNAMETAL KYON CERAMIC MILLING TURNING INSERTS, TNJN43ANNT0420 KY3400 For Sale

This item is new and in original packaging. The packaging may have been opened for inspection. THERE ARE 5 INSERTS IN A PACK. THE PRICE IS FOR ONE PACK OF 5 INSERTS.

• The Kennametal TNJN43ANNT0420 KY3400 is a high-performance Kyon ceramic turning insert designed primarily for high-speed machining of cast iron and hardened materials. [1, 2]Nomenclature & Specifications BreakdownThe ANSI/ISO alphanumeric code can be broken down step-by-step using Kennametal\'s Turning Standard Catalog: [1]
  • T: Insert Shape – Triangular (\\(60^{\\circ }\\) equilateral triangle).
  • N: Clearance Angle – \\(0^{\\circ }\\) normal clearance angle (negative rake insert, requiring a negative tool holder geometry).
  • J: Tolerances – Represents strict dimension limits for inner circle diameter, thickness, and nose height.
  • N: Fixing/Chipbreaker Type – Flat, solid insert with no hole and no molded-in chipbreaker profile.
  • 4: Size Code – Indicates a nominal inscribed circle (IC) size of 1/2 inch (\\(4/8\\)\").
  • 3: Thickness Code – Indicates a thickness of 3/16 inch.
  • ANN: Edge Preparation – A specialized edge condition typically indicating an unground, chamfered (T-land), or honed cutting edge built for heavy impact resistance in hard turning.
  • • T0420: Edge Style/Radius Details – Denotes the metric chamfer width and angle specifications (e.g., a T-land measuring \\(0.10\\text{ mm} \\times 20^\\circ\\)) combined with a precise edge hone configuration.
    • KY3400: Material Grade – Kyon 3400, a highly resilient Sialon / Silicon Nitride (\\(Si_{3}N_{4}\\)) ceramic matrix. It features extreme thermal deformation resistance and superior fracture toughness compared to traditional alumina ceramics, making it ideal for aggressive roughing to finishing cycles on gray or ductile cast iron. [1, 2, 3, 4, 5]
    • Operational Recommendations
      • Workpiece Materials: Exceptional performance on class 30-40 gray iron, ductile cast irons, and nodular irons. It can also selectively clear crusty surfaces or pre-hardened steels.

      • Please message with questions prior to buying/offerding.

        I reserve the right to ship with the carrier that offers me the best rate.