VNMG 160408-MM OS5835 Carbide Turning Insert

The VNMG 160408-MM OS5835 is a negative-rake carbide turning insert designed for semi-finishing and finishing tasks in CNC and manual lathes. Its 35° rhombic geometry allows machining in tight spaces and profiling operations, while the 0.8 mm corner radius provides stronger cutting edges and enhanced tool life compared to smaller radii. This makes it ideal for balanced applications requiring both durability and good surface quality.

Produced in the OS5835 grade, the insert features a fine-grained carbide substrate with a PVD coating, ensuring strong versatility across steels, stainless steels, and cast irons. The MM chipbreaker provides stable chip control, smoother cutting action, and better surface finish, even under medium machining conditions.

The VNMG 160408-MM OS5835 is compatible with common external turning tool holders, including MVJNR and SVJNR, which are specifically designed for 35° rhombic inserts. It is widely applied in automotive, mold making, and general engineering industries where reliability and consistent performance are essential.

Code Breakdown:

• V – Insert shape: 35° rhombic

• N – Clearance angle: 0° (negative rake)

• M – Tolerance class (medium)

• G – Insert with hole and chipbreaker

• 16 – Insert size: 16 mm

• 04 – Insert thickness: 4.76 mm

• 08 – Corner radius: 0.8 mm

• MM – Chipbreaker for medium to finishing applications

• OS5835 – Grade optimized for steels, stainless steels, and cast iron

Key Features:

• VNMG-style 35° rhombic turning insert

• Size: 16×16 mm, thickness 4.76 mm, radius 0.8 mm

• OS5835 grade – versatile carbide for steels, stainless steels, and cast iron

• MM chipbreaker for controlled chip evacuation and finish

• Negative rake geometry for durability and stability

• Fits holders: MVJNR, SVJNR

• Best for profiling and semi-finishing operations

Grade Information (OS5835):

• Coating: PVD, copper color

• Application: general milling and turning of steels (45#, Q235), stainless steels (304, 316), cast iron

• Best for: turning and milling stainless steels

• Material hardness: HRC <30

• Cutting speed: 120–220 m/min