Kennametal 3769441 Turning Insert SCMT3252FP KCU25 Carbide

Product Description

The KENNAMETAL 3769441 is a solid carbide turning insert designated SCMT3252FP in the KCU25 grade, carrying an AlTiN (aluminum titanium nitride) coating applied via PVD process. It features a 90-degree square shape with a 3/8 inch inscribed circle, a 0.0313 inch corner radius, and a 5/32 inch insert thickness. The FP chip breaker geometry is designed for finishing operations, delivering controlled chip formation at light depths of cut. Positive rake and positive side clearance reduce cutting forces on the workpiece. This insert is installed by machinists and CNC lathe operators performing turning, facing, and boring operations on steel, stainless steel, superalloys, and titanium.

This insert is suited for finishing passes on steel and stainless steel workpieces in both production and job-shop environments. The KCU25 grade offers moderate wear resistance and toughness across steel (P), stainless steel (M), cast iron (K), aluminum and non-ferrous (N), and superalloy and titanium (S) material categories. Maximum depth of cut is 0.0492 inches (1.25 mm), making it appropriate for light, precise material removal rather than heavy roughing. Multi-use capability supports turning, facing, and boring applications from a single insert geometry, reducing tool inventory requirements.

Key Features

• SCMT3252FP geometry with 90-degree square shape and 4 cutting edges for extended insert life
• AlTiN PVD coating provides heat resistance and wear resistance at the cutting edge
• FP chip breaker optimized for finishing operations at a maximum depth of cut of 0.0492 inches
• Positive rake angle (15 degrees) and positive side clearance reduce cutting forces
• Screw-On holding method with a 0.1732 inch hole diameter for secure, repeatable seating
• Neutral hand orientation; compatible with ANSI SCMT3252 and ISO SCMT09T308 toolholders
• Multi-use application: turning, facing, and boring from one insert style

Compatibility

Designed for use in screw-on style toolholders conforming to ANSI insert code SCMT3252 and ISO insert code SCMT09T308. Primary workpiece materials include steel, stainless steel, and superalloys and titanium; secondary materials include cast iron and non-ferrous alloys.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or indexing the insert. Use the manufacturer-specified torque driver for the screw-on clamp screw to ensure proper seating without cracking the carbide substrate. Inspect the insert pocket and seating surface for chips or debris before installing a new or indexed edge.