SOMT 140520 OS5305 Carbide Milling Insert

The SOMT 140520 OS5305 is a versatile carbide milling insert designed for general-purpose face milling. Manufactured with OS5305 grade, it uses a fine-grained substrate and high-aluminum PVD coating, providing strong wear resistance and stability under medium cutting conditions.

This insert is ideal for machining steels, stainless steels, and cast irons, with cutting speeds between 100–200 m/min and material hardness up to HRC 40. The optimized geometry of the SOMT series ensures stable cutting, effective chip evacuation, and extended tool life. Widely applied in automotive, mold-making, and general engineering industries, it offers flexibility and productivity in milling operations.

Code Breakdown:

• S – Insert shape: square

• O – Relief angle: 11°

• M – Tolerance class: medium

• T – Single-sided insert with fixing hole

• 140520 – Size: 14 mm IC, 5.2 mm thickness, 20 mm cutting edge

Key Features:

• Carbide milling insert for face milling cutters

• Grade OS5305 with PVD high-aluminum coating

• Works on steels, stainless steels, and cast irons

• Cutting speed: 100–200 m/min

• Hardness capacity: up to HRC 40

• Stable cutting and reliable chip control

• Long tool life with excellent wear resistance

Equivalent Inserts:

• Sandvik: R390-14T308M-PM 1030 / 1040

• Iscar: SOMT 140520-TN IC830

• Mitsubishi: SOMT14T3AGSN MP9130

Compatible Tool Holders:

• Suitable for face milling cutters designed for SOMT 140520 inserts