Seco 74016175 SPMX0903AP-75 T25M Carbide Milling Insert

Product Description

The SECO 74016175 is a solid carbide milling insert carrying ANSI/ISO designation SPMX0903AP-75 in manufacturer grade T25M. It features a square shape with a 90-degree included angle, four usable cutting edges, and a neutral rake and hand orientation. The insert measures 3/8 inches in both length and width with a thickness of 1/8 inches and an inscribed circle of 3/8 inches. A CVD-applied TiCN coating over a medium grain carbide substrate provides wear resistance and thermal stability across a range of milling applications. The T-Land cutting edge style and 11-degree relief angle are suited for controlled chip formation in demanding cuts.

This insert is designed for milling operations on steel, stainless steel, superalloys, and titanium, corresponding to ISO material groups P, M, and S. It fits into the SPMX-09 series and is held in the cutter body by a screw-clamp method. The 75 chip breaker geometry supports medium-depth milling passes up to a maximum depth of cut of 0.3750 inches. Compatible cutter series include R215.39, R215.49-3, and R417.19-3 as listed by the manufacturer. Typical users include CNC machining centers in production, maintenance, and job-shop environments.

Key Features

• Square insert with 90-degree included angle and four cutting edges for extended tool life per insert
• CVD-applied TiCN coating on medium grain solid carbide substrate for wear and heat resistance
• T-Land cutting edge style with 11-degree relief angle for controlled chip formation
• Neutral rake and neutral hand orientation for broad cutter compatibility
• Maximum depth of cut of 0.3750 inches with 75 chip breaker geometry
• Screw-held single-sided insert; multi-use tool designation confirms reindexable cutting edges

Compatibility

Compatible with SECO cutter series R215.39, R215.49-3, and R417.19-3 as stated by the manufacturer. Optimized for machining steel, stainless steel, superalloys, and titanium (ISO material groups P, M, and S).

Installation Notes

Installation is performed by a qualified machinist or tooling technician on a powered-down spindle with all machine energy sources locked out per shop safety protocols. Seat the insert fully in the pocket and secure the clamping screw to the cutter body torque specification listed in the cutter manufacturer documentation — do not rely on feel alone. Inspect the insert pocket for wear, chips, or debris before seating a new insert. Index or replace the insert at the first sign of edge wear to avoid workpiece damage or cutter body damage.