DCMT 070204-TM OS8226 Turning Inserts

The DCMT 070204-TM OS8226 Turning Inserts are precision-engineered carbide inserts designed for finishing and medium turning applications. With the OS8226 grade, they combine a tough fine-grain carbide substrate with a PVD coating, offering excellent balance between toughness, wear resistance, and thermal stability. This makes them suitable for machining steels and stainless steels, even under difficult cutting conditions.

The TM chipbreaker geometry ensures stable chip control, low cutting forces, and excellent surface quality. It allows smooth machining at higher speeds while reducing vibration, making these inserts highly reliable for continuous turning. Due to their optimized edge design, the DCMT 070204-TM OS8226 Turning Inserts are widely applied in precision engineering, automotive, and general machining industries.

They are especially effective for ISO P20–P35 steels and ISO M20–M30 stainless steels, covering a wide spectrum of applications. With their triangular shape and positive rake angle, they provide sharp cutting edges and stable performance, even with low power machines.

Code Breakdown

• DCMT – 55° diamond-shaped insert, positive rake

• 07 – Insert size (cutting edge length 7.94 mm)

• 02 – Insert thickness (2.38 mm)

• 04 – Corner radius (0.4 mm)

• TM – Chipbreaker for medium turning

• OS8226 – PVD-coated carbide grade for steels and stainless steels

Key Features of the Turning Insert

• Fine-grain carbide substrate for durability and toughness

• OS8226 PVD coating ensures wear and heat resistance

• TM geometry for reliable chip evacuation and stability

• Optimized for steels and stainless steels

• Sharp cutting edge for precision finishing

Equivalent Turning Inserts from Other Brands

• Sandvik: DCMT 070204-PM 4325 (Sandvik official site)

• Seco: DCMT 070204-M3 F30M

• Kennametal: DCMT 070204-MP KCP25

• Iscar: DCMT 070204-TF IC907

Recommended Cutting Data

• Cutting speed (steel): 160–260 m/min

• Cutting speed (stainless steel): 120–200 m/min

• Depth of cut: up to 2.0 mm

The DCMT 070204-TM OS8226 Turning Inserts are the right choice for machinists seeking precision, stability, and cost efficiency. For more turning and milling solutions, visit our Diamond Cut store.