Kennametal 4050615 Turning Insert KCU25 Altin 5/32 Ic

Product Description

The KENNAMETAL 4050615 is a solid carbide turning insert in the GPCD505 geometry, grade KCU25, with a physical vapor deposition (PVD) AlTiN coating. It carries a GPHW-style, non-ISO specialty shape with a 45-degree included angle, positive rake, and 11-degree relief angle. The inscribed circle measures 0.1563 inches and the corner radius is 0.0079 inches. Insert thickness is 0.0625 inches and insert length is 0.4418 inches. The flat-top chip breaker design and honed cutting edge style suit moderate-wear, moderate-toughness applications across a range of workpiece materials. Licensed machinists and CNC operators install this insert in screw-on toolholders for turning, facing, and boring operations.

This insert is designed for multi-use applications including turning, facing, and boring. It is suited for primary workpiece materials including steel, stainless steel, cast iron, aluminum and non-ferrous metals, and superalloys and titanium. The KCU25 grade provides moderate wear resistance and toughness across ISO material groups P, M, K, N, and S. Maximum depth of cut is 0.1471 inches. The insert delivers two cutting edges per insert, with neutral hand and positive side clearance. Typical use is in CNC turning centers and manual lathes in production or job-shop environments.

Key Features

• PVD AlTiN coating for elevated temperature resistance and extended tool life in steel and stainless steel
• KCU25 grade with moderate wear resistance and toughness across P, M, K, N, and S material groups
• Flat-top chip breaker with honed cutting edge for clean chip control and edge stability
• Positive rake and 11-degree relief angle reduce cutting forces and minimize workpiece deflection
• Two cutting edges per insert maximize value per piece
• Screw-on holding method compatible with standard GPHW-style toolholders

Compatibility

Designed for use in screw-on GPHW-style toolholders conforming to ANSI insert code GPHW12105 and ISO insert code GPHW. Conforms to ANSI and ISO standards. Industry standard number GPHW12105. Iso code GPCD050102. Material grade C2 and C6.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Disengage machine power and confirm spindle stop before indexing or replacing inserts. Use the correct torque driver for the screw-on clamp screw to avoid seat damage or insert fracture. Inspect the toolholder pocket and seating surface for chips or debris before seating a new insert.