MGMN 200-G OS5525 Carbide Grooving Insert

The MGMN 200-G OS5525 is a robust carbide grooving and parting insert designed for CNC lathes and conventional turning machines. With a 2.0 mm cutting width, it is suitable for parting-off, external grooving, and slotting operations where accuracy, stability, and smooth cutting are required. The G-style chipbreaker provides efficient chip evacuation, reduces cutting forces, and ensures consistent tool performance, even in medium-duty operations.

Produced in the OS5525 grade, this insert combines a fine-grained carbide substrate with a durable PVD coating, offering excellent wear resistance and toughness. The grade performs reliably on steels and stainless steels, delivering consistent surface quality and long tool life. Its thermal stability reduces built-up edge formation, ensuring stable cutting under medium machining conditions.

The MGMN 200-G OS5525 is designed to fit MGEHR and MGIVR tool holders, widely used in parting and grooving applications. It is applied across industries such as automotive, mold-making, and general machining, where precision and repeatability are essential.

Code Breakdown:

• M – Insert shape: rectangular for grooving/parting

• G – Insert type: grooving

• M – Tolerance class (medium)

• N – Insert without hole

• 200 – Cutting width: 2.0 mm

• G – Chipbreaker for grooving

• OS5525 – Grade for steels and stainless steels

Key Features:

• MGMN-style grooving and parting insert

• Cutting width: 2.0 mm

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

• G chipbreaker for chip evacuation and smooth grooving

• Excellent wear resistance and toughness

• Compatible with MGEHR, MGIVR holders

• Best for medium-duty grooving and parting

Grade Information (OS5525):

• Coating: PVD

• Application: steels and stainless steels

• Best for: grooving and parting under medium conditions

• Cutting speed: 120–220 m/min

• Material hardness: HRC <35