MGMN 150-G OS5525 Carbide Grooving Insert

The MGMN 150-G OS5525 is a precision carbide grooving and parting insert designed for CNC lathes and conventional turning machines. With a 1.5 mm cutting width, it is ideal for fine parting-off, grooving, and slotting operations where dimensional accuracy and surface finish are essential. The G-style chipbreaker ensures reliable chip control, reduced cutting resistance, and smooth operation during continuous cutting cycles.

Manufactured in OS5525 grade, the insert features a fine-grained carbide substrate combined with a high-performance PVD coating, offering excellent wear resistance and toughness. This makes it particularly effective for machining steels and stainless steels under medium cutting conditions. The coating enhances thermal stability and prevents built-up edge formation, improving tool life and part quality.

The MGMN 150-G OS5525 is compatible with MGEHR and MGIVR tool holders, designed specifically for grooving inserts. It is widely used in automotive, mold-making, and general engineering industries where precision grooving and reliable tool performance are required.

Code Breakdown:

• M – Insert shape: rectangular for grooving/parting

• G – Insert type: grooving

• M – Tolerance class (medium)

• N – Insert without hole

• 150 – Cutting width: 1.5 mm

• G – Chipbreaker for grooving

• OS5525 – Grade optimized for steels and stainless steels

Key Features:

• MGMN-style grooving and parting insert

• Cutting width: 1.5 mm

• OS5525 grade – PVD-coated carbide for steels and stainless steels

• G chipbreaker for efficient chip control in grooving

• High wear resistance and toughness for tool life extension

• Compatible with MGEHR, MGIVR holders

• Best for fine grooving and parting applications

Grade Information (OS5525):

• Coating: PVD

• Application: steels and stainless steels

• Best for: general-purpose grooving and parting

• Cutting conditions: medium

• Cutting speed: 120–220 m/min

• Material hardness: HRC <35