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High-performance milling insert LNKT...-GM RT250K for cast iron

The LNKT...-GM milling insert in grade RT250K is a professional solution for machining cast iron materials. Thanks to the durable CVD-coated K10-K20 carbide, this tool delivers notable thermal and mechanical stability. The purpose-designed GM geometry contributes to a reliable milling process with proper chip evacuation, opening up flexible applications in industrial manufacturing environments.

Suitable materials

Technical data

  • Insert shape: LNKT
  • Grade: RT250K
  • Material: K10-K20 carbide
  • Coating: CVD-coated
  • Chipbreaker: GM
  • Packaging unit: 10 pieces

Dimensions of LNKT...-GM RT250K

Item Nr. L S W r
LNKT 080408-GM RT250K 2651207 8,75 4,45 8,75 0,8
LNKT 120608-GM RT250K 2651208 12,7 6,75 12,7 0,8
LNKT 160708-GM RT250K 2651209 16,05 7,35 16,05 0,8

Cutting data

Cast Iron
Vc (m/min) fn (mm/U)
LNKT 080408-GM RT250K 180-360 0,25-0,5
LNKT 120608-GM RT250K 180-360 0,25-0,5
LNKT 160708-GM RT250K 180-360 0,25-0,5

Applications

This milling insert is strictly tailored for the secure face and shoulder milling of gray cast iron and nodular cast iron components. The strong cutting edges handle demanding cutting conditions well and support efficient workflows in both serial production and single-part manufacturing.

Special features

The heat-insulating CVD coating effectively shields the carbide core from rapid wear at elevated cutting speeds. The combination of a tough substrate and a well-designed cutting geometry promotes smooth operation, minimizes vibrations, and creates a clean surface finish on the workpiece.

2651207

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