Kennametal 1719253 Milling Insert SEKR1204AFENGP KC725M

Product Description

The KENNAMETAL 1719253 is a solid carbide milling insert carrying ISO designation SEKR1204AFENGP and manufactured in grade KC725M. It features a square insert shape with a 90-degree included angle, a neutral hand orientation, and a GP chip breaker geometry. The insert is PVD-coated with a TiN/TiCN/TiN multilayer finish applied over the solid carbide substrate. With a 0.1827-inch thickness and a 0.625-inch inscribed circle diameter, this insert is designed for high-performance milling operations in demanding material categories. It is held in the tool body by screw clamping and is suited for trades and shops running precision milling on a production or job-shop basis.

This insert is intended for milling applications in steel, stainless steel, superalloys, and titanium — ISO material groups P, M, and S. The KC725M grade and PVD multilayer coating make it a practical choice for moderate to high cutting speeds where edge integrity and thermal resistance are priorities. Typical install scenarios include face milling, shoulder milling, and similar operations on CNC machining centers where consistent insert geometry and coating durability are required across a multi-insert tool body.

Key Features

• Solid carbide substrate in manufacturer grade KC725M, rated for C5, C6, and C7 material application classes
• PVD-applied TiN/TiCN/TiN multilayer coating for improved edge wear resistance and thermal stability
• Square insert shape (SEKR series) with 90-degree included angle and neutral hand
• GP chip breaker geometry with a 30-degree rake angle and 20-degree relief angle
• 0.0433-inch (1.10 mm) corner radius for controlled surface finish and edge strength
• Screw-clamping insert holding method for secure seating in compatible milling bodies

Compatibility

Designed for use in SEKR-series screw-clamp milling tool bodies that accept square inserts with a 5/8-inch (0.625-inch) inscribed circle and 0.1827-inch thickness, conforming to ISO code SEKR1204AFENGP.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the spindle fully stopped and the machine locked out per shop safety procedures. Seat the insert firmly against the pocket locating surfaces before tightening the clamping screw; do not over-torque the screw, as carbide inserts are brittle and can crack under uneven clamping load. Inspect the insert pocket and seating surfaces for chips or debris before each insert change. Always verify insert orientation and hand designation match the tool body specification before beginning a cut.