WCMT 030208FN OS5835 Carbide Drill Insert

The WCMT 030208FN OS5835 is a high-performance carbide drill insert designed for indexable drilling systems. Its trigon W-shape geometry with positive cutting edges ensures smooth cutting action, reduced cutting forces, and excellent chip evacuation. With a 0.8 mm corner radius, this insert offers additional edge strength, making it suitable for semi-finishing and general-purpose drilling where stability and tool life are critical.

Manufactured in the OS5835 grade, it features a fine-grained carbide substrate with a copper-colored PVD coating. This combination delivers high wear resistance and versatility, allowing the insert to perform reliably across steels, stainless steels, and cast irons. The FN chipbreaker is specifically engineered for drilling, ensuring stable chip control, consistent hole quality, and extended tool life even in demanding applications.

The WCMT 030208FN OS5835 is compatible with a wide range of indexable drill bodies designed for WCMT inserts. It is widely applied in automotive, mold-making, and general engineering industries, where reliable hole accuracy, surface quality, and productivity are essential.

Code Breakdown:

• W – Insert shape: trigon (80° with curved edges)

• C – Relief angle: 7° positive

• M – Tolerance class (medium)

• T – Insert with hole and chipbreaker

• 03 – Insert size: 3 mm

• 02 – Insert thickness: 2.38 mm

• 08 – Corner radius: 0.8 mm

• FN – Chipbreaker for drilling applications

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

Key Features:

• WCMT-style trigon carbide drill insert

• Size: 3 mm, thickness 2.38 mm, radius 0.8 mm

• OS5835 grade – copper PVD versatile coating

• FN chipbreaker for stable drilling performance

• Positive cutting geometry for low forces and smooth finishes

• Compatible with indexable drill bodies for WCMT inserts

• Best for steels, stainless steels, and cast irons

Grade Information (OS5835):

• Coating: PVD, copper color

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

• Best for: stainless steel and general-purpose drilling

• Material hardness: HRC <30

• Cutting speed: 120–220 m/min