Kennametal 1113607 NG4125 K68 Grooving Insert 0.125 in

Product Description

The KENNAMETAL 1113607 is a solid carbide grooving insert designed for external grooving and turning operations on CNC lathes and turning centers. This uncoated insert carries grade K68 carbide and belongs to the Top Notch series, a widely used indexable grooving platform in production machining environments. It features a 0.125-inch (3.18 mm) cutting width and a maximum depth of cut of 0.150 inch (3.81 mm), with a neutral rake geometry and a 55-degree included angle. At 0.0538 pounds, it is a precision-ground insert intended for machinists and toolroom professionals running grooving applications on steel, cast iron, and non-ferrous materials.

This insert is suited for light-to-medium grooving passes in both job-shop and production environments. The right-hand cutting orientation and insert seat size 4 make it compatible with standard Top Notch toolholders. The K68 uncoated carbide grade is well regarded for applications requiring a sharp, consistent edge without a coating layer, particularly on non-ferrous and abrasive workpiece materials. A corner radius of 0.0075 inch (0.19 mm) provides a controlled surface finish at groove walls without excessive stress concentration at the cutting edge.

Key Features

• K68 solid carbide grade, uncoated (bright finish) for sharp-edge performance on non-ferrous and abrasive materials
• 0.125-inch (3.18 mm) cutting width for precise groove sizing
• Maximum depth of cut 0.150 inch (3.81 mm); depth of cut range 0.118 to 0.157 inch (3.00 to 4.00 mm)
• Neutral rake geometry with 55-degree included angle and 3-degree lead angle
• Corner radius 0.0075 inch (0.19 mm) for controlled groove-wall finish
• Top Notch series platform for broad toolholder compatibility
• Insert seat size 4, right-hand orientation

Compatibility

Designed for use in Top Notch series toolholders accepting insert seat size 4 with style designation NG. MSC/Manufacturer cross-reference number NG4125R/L. No specific machine or holder model numbers were provided in the product data; confirm toolholder seat size and clamping style before ordering.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist with the spindle locked and the machine in a de-energized state. Inspect the insert pocket and clamping screw for wear or debris before seating the insert. Use the manufacturer-recommended torque driver for Top Notch clamping screws - do not use impact tools. Verify insert orientation and depth-stop settings against the job setup sheet before resuming cutting operations.