Kennametal 3753415 Turning Insert CPMT3252MF KCP25

Product Description

The KENNAMETAL 3753415 is a solid carbide turning insert in the CPMT3252MF geometry, manufactured to ANSI and ISO standards and graded KCP25. It carries a multilayer CVD coating of TiCN and Al2O3 applied via MTCVD process, providing moderate wear-resistance and toughness suited for steel, cast iron, aluminum, and other non-ferrous materials. The 80-degree diamond (rhombic) shape delivers a strong cutting edge geometry, while the MF chip breaker is optimized for finishing and medium machining operations. The insert measures 9.67 mm (0.3808 inches) in length with a 3/8-inch inscribed circle and a 1/32-inch corner radius. It is held in place via a screw-on method and features a positive rake and positive side clearance for clean, efficient chip evacuation.

This insert is designed for turning, facing, and boring operations on CNC lathes and machining centers used in production environments. It is suited for both residential shop use and industrial production settings where consistent surface finish and dimensional accuracy are required on steel and non-ferrous workpieces. The neutral hand orientation makes it adaptable across a range of toolholder setups. With two cutting edges per insert and a chamfered and honed cutting edge style, it delivers reliable performance across moderate material removal rates and finishing passes. Machinists working with P-category steels and N-category aluminum alloys will find the KCP25 grade a practical general-purpose choice.

Key Features

• CPMT3252MF geometry with 80-degree diamond shape and MF chip breaker for finishing and medium machining
• KCP25 grade with multilayer TiCN and Al2O3 CVD coating for moderate wear-resistance and toughness
• Screw-on insert holding method with positive rake and positive side clearance
• Two cutting edges per insert, chamfered and honed cutting edge style
• Neutral hand orientation compatible with a wide range of toolholders
• Rated for turning, facing, and boring applications on steel, cast iron, aluminum, and non-ferrous materials

Compatibility

Designed for use in screw-on CPMT-style toolholders compatible with ANSI insert code CPMT3252 and ISO insert code CPMT09T308. Suitable for primary workpiece materials classified under P (steel, cast iron) and N (aluminum and non-ferrous) material grade categories.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate torx or hex key to torque the clamping screw to the toolholder manufacturer specification - do not overtighten, as this can fracture the carbide insert. Inspect the insert pocket and seating surface for chips or debris before each insert change to ensure proper seating and accurate tool geometry.