Kennametal 5641069 Turning Insert CPMT2152MF KCM15B Carbide

Product Description

The KENNAMETAL 5641069 is a solid carbide turning insert designated CPMT2152MF with grade KCM15B. It features a multilayer TiCN and Al2O3 MTCVD coating applied via CVD process, delivering wear resistance suited to steel and stainless steel machining. The insert carries an 80-degree diamond (rhombic) shape, a positive rake geometry, and an 11-degree relief angle. With a 0.25-inch inscribed circle and a 0.03-inch corner radius, this screw-on insert is sized for finish to medium machining operations. Licensed HVAC techs and machinists in metalworking shops will recognize the MF chip breaker as a geometry optimized for controlled chip formation at moderate feeds and depths.

This insert is designed for turning, facing, and boring operations on steel, stainless steel, superalloys, and titanium workpieces. The KCM15B grade provides moderate wear resistance combined with toughness, making it a practical choice for both P-class (steel) and M-class (stainless steel) ISO material groups. It is suited to CNC turning centers and manual lathes where screw-on toolholders accepting CPMT-style inserts are used. A maximum depth of cut of 0.08 inches supports light-to-moderate roughing passes as well as finishing cuts. Two cutting edges are available per insert, improving cost-per-edge economics in production environments.

Key Features

• Solid carbide substrate with multilayer TiCN and Al2O3 CVD coating for heat and wear resistance
• 80-degree diamond (rhombic) insert shape with positive rake and positive side clearance
• MF chip breaker geometry optimized for finishing and medium machining applications
• Screw-on holding method with chamfered and honed cutting edge style for controlled entry
• Two usable cutting edges per insert for extended tool life per piece
• Conforms to ANSI insert code CPMT2152 and ISO insert code CPMT060208

Compatibility

Designed as an OEM-style screw-on turning insert conforming to ANSI code CPMT2152 and ISO code CPMT060208, compatible with standard CPMT-style screw-on toolholders used in turning, facing, and boring applications on steel, stainless steel, superalloys, and titanium workpieces.

Installation Notes

Installation is performed by machining professionals using appropriate CPMT screw-on toolholders; ensure the machine spindle is fully stopped and the toolholder is secured in the turret before seating or replacing the insert. Inspect the pocket seating surface and shim for chips or debris before installing the new insert. Follow the toolholder manufacturer torque guidelines for the clamping screw to avoid fracturing the carbide substrate. Verify insert orientation and hand designation match the toolholder before resuming cutting operations.