Kennametal 4045237 DCGT21505HP KCU10 Carbide Turning Insert

Product Description

The KENNAMETAL 4045237 is a solid carbide turning insert in DCGT21505HP geometry with KCU10 grade, designed for high-precision finishing operations on CNC lathes and turning centers. The insert features a 55-degree diamond (rhombic) shape, a 0.25-inch inscribed circle, and a 0.0079-inch corner radius. A TiAlN PVD coating delivers high wear resistance across a range of workpiece materials. The positive rake angle of 15 degrees and honed cutting edge reduce cutting forces during light finishing passes. Licensed machinists and CNC operators install this insert in screw-on toolholders for turning, facing, boring, back turning, and back boring applications.

This insert is suited for finishing cuts on steel, stainless steel, superalloys, titanium, cast iron, aluminum, and hardened materials, corresponding to ISO material groups P, M, K, N, S, and H. The HP chip breaker geometry is optimized for finishing operations where tight tolerances and fine surface finish are required. The neutral hand orientation makes it adaptable across compatible screw-on DCGT-style toolholders. Its maximum depth of cut reaches 0.2033 inches, making it appropriate for light to moderate material removal in high-precision turning scenarios common in aerospace, medical, and general machining environments.

Key Features

• DCGT21505HP geometry with 55-degree diamond shape and positive 7-degree relief angle
• KCU10 grade with TiAlN PVD coating for high wear resistance on steel, stainless steel, and superalloys
• HP chip breaker optimized for finishing operations with positive 15-degree rake angle
• Honed cutting edge for reduced cutting forces and improved surface finish
• Screw-on insert holding method with neutral hand for versatile toolholder compatibility
• Multi-use application: turning, facing, boring, back turning, and back boring

Compatibility

Designed as an OEM-style replacement insert for screw-on DCGT-style toolholders accepting DCGT21505 geometry inserts. Conforms to ANSI insert code DCGT21505 and ISO insert code DCGT070202.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Power down and lock out the machine spindle before changing inserts. Seat the insert fully in the toolholder pocket and secure with the clamping screw to the toolholder manufacturer's specified method before resuming operation. Inspect the cutting edge and seating pocket for chips or debris before each insert change to ensure accurate positioning and safe cutting.