Seco 00033061 Ball Nose Milling Insert 0.375 in F25M

Product Description

The SECO 00033061 is a solid carbide ball nose milling insert designed for high-performance metal removal in milling applications. Manufactured to insert style 218.20-0.375ER-M05 with a manufacturer grade of F25M, it features a TiAlN and TiN dual coating applied via PVD process for heat resistance and extended tool life. The insert measures 0.1516 inches thick, 0.3224 inches wide, and 0.7331 inches in length, with a 0.375-inch corner radius and a maximum depth of cut of 0.669 inches. With two right-hand cutting edges and a positive rake angle of 3 degrees, this insert is suited for productive roughing and semi-finishing passes on ferrous materials.

This insert is intended for use in CNC milling operations on steel, stainless steel, and cast iron workpieces. The M05 chip breaker geometry supports medium-grain carbide performance in both roughing and finishing contexts. It is compatible with the SECO R218.20-0.750 cutter series and is held in place via screw mounting. The insert is single-sided with a 90-degree included angle and an 11-degree relief angle, making it well suited for ball nose profiling passes on vertical machining centers and multi-axis platforms. Right-hand cutting orientation should be confirmed before installation.

Key Features

• Solid carbide construction with TiAlN and TiN PVD coating for heat and wear resistance
• Ball nose geometry with 0.375-inch corner radius for 3D profiling and contour milling
• M05 chip breaker designed for steel, stainless steel, and cast iron applications
• Two right-hand cutting edges with honed edge preparation and positive rake
• Maximum depth of cut of 0.669 inches with screw-type insert retention
• ISO-standard geometry coded 218.20-0.375ER-M05 for cross-reference identification

Compatibility

Designed for use in the SECO R218.20-0.750 cutter series. Insert style code 218.20-0.375ER-M05 is the ANSI and ISO reference for toolholder compatibility verification. Suitable for machining steel, stainless steel, and cast iron workpiece materials.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Confirm spindle is fully stopped and locked out before changing inserts. Use the appropriate Torx or hex key to seat the screw-mount insert securely in the pocket; do not overtighten. Verify insert hand orientation and confirm cutter body compatibility before commencing the cut.