DNMG 150612-TM OS2125 Carbide Turning Insert

The DNMG 150612-TM OS2125 is a high-performance carbide turning insert designed for medium cutting applications. With its 55° diamond shape (D-type), it provides excellent accessibility for profiling, finishing, and semi-finishing operations. The insert’s OS2125 grade features a CVD-coated carbide substrate that combines toughness with wear resistance, making it highly suitable for machining steels and stainless steels under both continuous and light interrupted cuts.

The 150612 designation means the insert has a 15 mm inscribed circle, 6.35 mm thickness, and a 12 mm cutting edge length. The TM chipbreaker provides efficient chip evacuation and stable cutting forces, ensuring consistent surface quality and extended tool life.

This insert is widely applied in automotive, general engineering, and heavy machinery industries where reliability and repeatability are critical. The OS2125 grade performs best at medium cutting speeds and depths, delivering balanced performance between wear resistance and toughness.

Code Breakdown:

• D – Insert shape: 55° diamond

• N – Relief angle: 0° (negative insert)

• M – Tolerance class: medium

• G – Hole with chipbreaker

• 150612 – Size: 15 mm IC, 6.35 mm thickness, 12 mm cutting edge length

• TM – Chipbreaker for medium cutting

• OS2125 – CVD-coated grade for steels and stainless steels

Key Features:

• DNMG 55° diamond-shaped insert

• Grade OS2125 with CVD coating

• Best for steels and stainless steels

• Excellent for profiling and semi-finishing

• Cutting edge: 12 mm, thickness: 6.35 mm

• Stable chipbreaker for medium machining

• Reliable in both continuous and light interrupted cuts

Equivalent Inserts:

• Sandvik: DNMG 150612-PM 2025

• Iscar: DNMG 150612-TF IC8250

• Mitsubishi: DNMG150612-MA US735

Compatible Tool Holders:

• DDJNR / DDJNL

• MDJNR / MDJNL

• PDJNR / PDJNL

• Other 55° diamond negative tool holders