Kennametal 3763729 Milling Insert KCK15 Solid Carbide

Product Description

The KENNAMETAL 3763729 is a solid carbide milling insert designed for high-productivity face and milling operations in cast iron applications. Carrying the ISO designation HNPJ090543ANSNHD, this double-sided hexagonal insert features a negative rake angle and a chamfered and honed cutting edge style that promotes edge stability under demanding cutting conditions. The MTCVD-applied tri-layer coating stack of TiN, TiCN, and Al2O3 provides thermal resistance and wear protection. With 12 usable cutting edges per insert and a maximum depth of cut of 0.3340 inches, it delivers a strong cost-per-edge value for production machining environments. Machinists and CNC operators working with gray and nodular cast iron are the primary users.

This insert is rated for primary workpiece material code K, covering cast iron grades commonly found in automotive, heavy equipment, and industrial component machining. The HD chip breaker geometry is engineered to control chip flow and reduce cutting forces in cast iron. The insert seats in a screw-clamping arrangement within compatible Dodeka cutter bodies, making it appropriate for both roughing and semi-finishing passes on horizontal and vertical machining centers. Its neutral hand orientation allows use across a variety of cutter configurations without requiring handed insert sets.

Key Features

• Double-sided hexagonal insert with 12 cutting edges for maximum tool economy
• MTCVD tri-layer TiN, TiCN, Al2O3 coating for thermal and abrasion resistance in cast iron
• HD chip breaker geometry optimized for controlled chip formation in K-grade materials
• Negative rake angle with chamfered and honed edge for improved edge strength
• Maximum depth of cut of 0.3340 inches suitable for roughing and semi-finishing
• Compatible with Dodeka cutter series using screw-clamping insert retention

Compatibility

Designed for use with the Kennametal Dodeka cutter series. Insert conforms to ANSI code HNPJ53511ANSNHD and ISO code HNPJ090543ANSNHD. Verify cutter body pocket specifications against these codes before ordering.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the manufacturer-specified torx or hex key for the clamping screw and follow the cutter body documentation for proper seating torque to avoid insert rocking. Inspect the pocket seat and clamping screw threads for wear or debris before installing a new insert.