Kennametal 3754345 CCMT3252MF KCP30 Turning Insert

Product Description

The KENNAMETAL 3754345 is a CCMT3252MF-style solid carbide turning insert in the KCP30 grade, designed for precision metal removal in turning, facing, and boring operations. It features a multilayer CVD coating of TiN, TiCN, and Al2O3 applied via MTCVD process, delivering wear resistance and thermal protection during continuous cuts in steel. The insert has an 80-degree diamond shape, a neutral hand orientation, and a chamfered and honed cutting edge style. With an inscribed circle of 0.375 inches and a corner radius of 0.0313 inches, it suits light-to-moderate finishing and semi-finishing work. Licensed machinists and CNC programmers select this geometry for its positive rake and predictable chip formation through the MF chip breaker.

This insert is intended primarily for machining steel workpieces (ISO material group P) and is suited for use on CNC lathes and turning centers in both production and job-shop environments. The screw-on holding method provides secure clamping in compatible toolholders. Its two cutting edges allow the insert to be indexed, extending usable service life. Applications include external turning, facing passes, and boring where controlled chip evacuation and surface finish consistency are priorities.

Key Features

• KCP30 grade carbide with multilayer CVD coating (TiN, TiCN, Al2O3) for steel cutting performance
• CCMT insert style with 80-degree diamond shape and positive rake angle
• MF chip breaker geometry optimized for light finishing and semi-finishing cuts
• Chamfered and honed cutting edge for edge strength and surface finish quality
• Two usable cutting edges per insert for extended tool life
• Screw-on holding method for rigid, repeatable seating in compatible toolholders
• Multi-use capable: turning, facing, and boring applications

Compatibility

Designed as a screw-on replacement turning insert for CCMT-style toolholders accepting a 3/8-inch inscribed circle insert. Compatible with toolholders conforming to ANSI and ISO CCMT3252 standards. Verify toolholder pocket geometry and screw size before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key to seat the clamping screw to the toolholder manufacturer's specification — do not overtighten, as carbide inserts are brittle and can crack under uneven clamping force. Inspect the insert pocket and screw thread for wear or debris before seating a new insert.