Tungaloy 6863526 Turning Insert CPMT32.51PS AH725

Product Description

The TUNGALOY 6863526 is a solid carbide turning insert in the CPMT-PS series, designated by ISO code CPMT32.51PS and manufactured to grade AH725. The insert features a PVD-applied TiAlN coating over a carbide substrate, providing thermal and wear resistance across a range of cutting operations. It carries a diamond 80-degree insert shape with a positive rake angle of 10 degrees, a honed cutting edge, and a 0.0157-inch corner radius. With two cutting edges and screw-style holding, this insert is suited to production turning, facing, and boring applications in a variety of workpiece materials. Licensed machinists and CNC turning specialists are the primary installers of this insert.

This insert is designed for turning, facing, and boring operations and is applicable across a broad material range including steel, stainless steel, cast iron, non-ferrous metals, superalloys and titanium, and hard materials. The AH725 grade with TiAlN PVD coating targets ISO material groups P, M, K, N, S, and H, with material grade designations P15, P30, M15, M30, K25, K30, S15, and S25. It is suited for both light and moderate cutting depths up to a maximum depth of cut of 0.0984 inches, making it a versatile option in high-mix turning environments.

Key Features

• ISO code CPMT32.51PS with 80-degree diamond insert shape and positive rake geometry
• AH725 grade TiAlN coating applied by PVD process for wear resistance at elevated temperatures
• Honed cutting edge style reduces microchipping during interrupted or moderate-condition cuts
• Two usable cutting edges per insert with neutral hand orientation
• Screw-style insert holding method for repeatable seating and quick indexing
• PS chip breaker geometry supports turning, facing, and boring across multiple material groups

Compatibility

Designed as an OEM-style replacement and direct-fit turning insert for toolholders accepting CPMT-style inserts per ANSI and ISO standards. Compatible with primary workpiece materials coded P, M, K, N, S, and H per ISO classification.

Installation Notes

Installation is performed by a qualified machinist or CNC turning technician. The machine spindle must be fully stopped and the turret or toolholder must be de-energized and locked before indexing or replacing the insert. Use the appropriate torx or hex key to seat the clamp screw to the toolholder manufacturer's specified method without overtightening. Verify insert seating and tool offset compensation in the control before resuming cutting operations.