Kennametal 3781264 Grooving Insert 10mm Carbide Altin

Product Description

The KENNAMETAL 3781264 is a solid carbide grooving insert engineered for precise groove-turning operations on CNC lathes and turning centers. Built to the A4 series standard, it carries the GUP chip breaker geometry and a KCU25 manufacturer grade with an AlTiN finish applied via PVD coating. The cutting width measures 10 mm (0.3937 inches) and the maximum depth of cut reaches 6 mm (0.2362 inches). The neutral hand orientation and positive rake angle support consistent chip control across a range of workpiece materials. Licensed machinists and CNC turning specialists install this insert as a direct replacement in compatible A4-series toolholders.

This insert is suited to external and internal grooving applications on production turning equipment in both job shop and production machining environments. The 10 mm insert size and 0.80 mm (0.0315 inch) corner radius make it appropriate for medium-duty grooving passes where dimensional accuracy and surface finish consistency are critical. The AlTiN PVD coating provides thermal and abrasion resistance, supporting extended tool life in ferrous and hard-alloy cutting. The GUP chip breaker geometry helps manage chip evacuation, reducing the risk of chip packing in deep grooves with depths ranging from 5 mm to 10 mm.

Key Features

• Solid carbide construction with AlTiN finish via PVD coating process for thermal and wear resistance
• 10 mm cutting width with maximum depth of cut of 6 mm (0.2362 inches)
• GUP chip breaker geometry for controlled chip evacuation in grooving operations
• Positive rake angle reduces cutting forces on the workpiece
• 0.80 mm corner radius for accurate groove profile definition
• Neutral hand insert orientation — compatible with standard A4-series toolholding systems

Compatibility

Designed as an OEM-style replacement insert for A4-series grooving toolholders accepting a 10 mm insert seat size. No specific model numbers or system families were identified in the available input data.

Installation Notes

This insert should be installed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Verify that the toolholder seat and clamping screw are clean and free of chips before seating the insert. Follow the toolholder manufacturer torque guidelines for the clamping screw — do not overtighten, as carbide inserts are brittle and may crack under excessive clamp load.