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Professional Turning Solution: Indexable Insert TNMG...-PM RT250+

The indexable insert TNMG...-PM RT250+ is a proven choice for efficient steel machining. As a negative triangular insert, it features a stable design with six fully usable cutting edges, contributing significantly to process economy. The PM geometry is specifically designed for medium turning applications and handles both continuous and light interrupted cuts. By utilizing the premium CVD-coated grade RT250+ (P20-P30), professional machinists benefit from solid wear resistance that enables consistent machining quality when turning steel components.

Suitable materials

Technical data

  • Shape: TNMG (negative 60° triangular insert)
  • Processing: Medium
  • Cutting conditions: Continuous and light interrupted
  • Workpiece Material: Steel
  • Grade: RT250+ (CVD coated 2 color coated P20-P30 carbide for steel)
  • Packaging unit: 10 Pc.

Dimensions of Indexable insert TNMG...-PM RT250+

  Item Nr. r L I.C S d
TNMG 160404-PM RT250+ 1661391 0,4 16,5 9,525 4,76 3,81
TNMG 160408-PM RT250+ 1661392 0,8 16,5 9,525 4,76 3,81
TNMG 160412-PM RT250+ 1661393 1,2 16,5 9,525 4,76 3,81

Cutting data

Steel
Vc (m/min) fn (mm/U) ap (mm)
TNMG 160404-PM RT250+ 120-240 0,15-0,35 0,5-4
TNMG 160408-PM RT250+ 120-240 0,15-0,35 0,5-4
TNMG 160412-PM RT250+ 120-240 0,15-0,35 0,5-4

Applications

This turning insert demonstrates its full potential in the medium machining of various steel materials. It is perfectly suited for longitudinal and facing operations and, thanks to its construction, offers excellent chip evacuation. The design with the PM chipbreaker establishes favorable conditions for reliable chip control, which is particularly beneficial in modern CNC turning operations.

Special features

The version with the two-color CVD coating supports the visibility of the wear condition in everyday work, allowing tool changes to be planned in a timely manner. With its three corners and six applicable cutting edges, the negative carbide insert convinces as a well-thought-out and economical solution for professional use in manufacturing.

1661391

Data sheet

Materials
Steel
Processing
Mittel
Inserts
TN..
Cutting conditions
Continuous
Light interrupted

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