Seco 74015255 Milling Insert T25M Solid Carbide Ticn

Product Description

The SECO 74015255 is a solid carbide milling insert carrying the manufacturer catalog designation 335.19-1103T-MD09 and grade T25M. It features a square shape with a 90-degree included angle, a neutral hand orientation, and a negative rake angle of 15 degrees. The insert is CVD-coated with TiCN for extended wear resistance in demanding cutting applications. Four cutting edges are available per insert, and the cutting edge style is T-Land with an MD09 chip breaker geometry. Thickness is 0.1063 inches and the inscribed circle measures 0.4331 inches. This insert is held in the cutter body by screw-type clamping and is designed for single-sided use.

This insert is intended for milling operations on steel, stainless steel, superalloys, and titanium, corresponding to ISO material groups P, M, and S. It fits within the 335.19-11 series cutter platform and is suited for milling heads designed around the 335.19 cutter series. Typical applications include face milling, shoulder milling, and general material removal in production environments where consistent edge life and chip control are priorities. It is appropriate for both CNC machining centers and manual milling setups running at parameters suited to solid carbide grades.

Key Features

• CVD-applied TiCN coating provides thermal and abrasion resistance for steel and stainless steel cutting
• Four cutting edges per insert for extended tool economy on single-sided geometry
• MD09 chip breaker geometry designed for controlled chip formation across P, M, and S material groups
• Negative rake angle (15 degrees) with T-Land cutting edge style for edge strength and impact resistance
• Square insert shape with 90-degree included angle suits shoulder and face milling cutter bodies
• Medium grain solid carbide substrate for a balance of toughness and wear resistance

Compatibility

Designed for use with SECO 335.19 series cutter bodies. The insert size code is 1103 and the series designation is 335.19-11. Both the ANSI and ISO code for this insert are 335.19-1103T-MD09.

Installation Notes

Installation is performed by a machinist or tooling technician using the screw-clamping method specified for 335.19 series cutter bodies. The spindle and machine should be fully powered down and locked out before changing inserts. Use the correct torx or hex key as specified by the cutter body manufacturer to seat the clamping screw to the recommended feel — do not overtighten. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert edge.