Kennametal 4045138 Turning Insert CCGT2151LF KCU10 Carbide

Product Description

The KENNAMETAL 4045138 is a solid carbide turning insert designated CCGT2151LF in the KCU10 grade, designed for high-precision finishing and light machining operations on CNC lathes and turning centers. The insert features a TiAlN coating applied via PVD process, delivering high wear resistance across a range of workpiece materials. It carries an 80-degree diamond (rhombic) shape with a positive rake angle of 5 degrees and a 7-degree relief angle, producing clean surface finishes with reduced cutting forces. The 1/64-inch corner radius and honed cutting edge style make this insert well suited for fine finishing passes where dimensional accuracy and surface quality are priorities. Licensed machinists and CNC operators are the primary installers of this insert.

This insert is intended for turning, facing, and boring operations on steel, stainless steel, cast iron, superalloys, titanium, and aluminum. The LF chip breaker geometry is optimized for finishing and light machining, providing reliable chip control at tighter depths of cut. The neutral hand orientation allows use in standard right-hand turning toolholders that accept CCGT-style screw-on inserts. Maximum depth of cut is 0.0845 inches. The KCU10 grade offers high to moderate wear resistance and toughness across ISO material groups P, M, K, N, S, and H, making it a versatile choice for shops running mixed-material production work.

Key Features

• TiAlN coating via PVD process for high wear resistance and extended tool life
• 80-degree diamond insert shape with positive rake for reduced cutting forces
• LF chip breaker geometry optimized for finishing and light machining operations
• Honed cutting edge style improves edge strength on fine finishing passes
• Neutral hand orientation fits standard CCGT screw-on toolholders
• 2 cutting edges per insert; screw-on holding method for secure, repeatable indexing

Compatibility

Designed for use in screw-on CCGT-style turning toolholders. ANSI insert code CCGT2151, ISO insert code CCGT060204. Suitable for turning, facing, and boring applications in steel, stainless steel, cast iron, aluminum, superalloys, and titanium workpieces (ISO material codes P, M, K, N, S, H). Conforms to ANSI and ISO insert standards.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist with the machine in a full stop and all motion locked out per established lockout/tagout procedures. Use the appropriate torx or hex key to seat the clamping screw to the toolholder manufacturer's specified torque range for screw-on inserts. Inspect the insert pocket and seating surface for chips or debris before indexing to a fresh cutting edge. Do not run the insert beyond visible wear limits, as edge breakdown on finishing inserts can rapidly degrade workpiece surface finish and dimensional tolerances.