Kennametal 1113603 NG3078 K68 Grooving Insert Carbide

Product Description

The KENNAMETAL 1113603 is a solid carbide grooving insert designed for precision parting and grooving operations on CNC lathes and turning centers. Manufactured in the NG3078 insert style within the Top Notch series, it features a cutting width of 1.98 mm (0.078 inches) and a maximum depth of cut of 2.39 mm (0.094 inches). The K68 grade is an uncoated, bright-finish carbide suited for cutting non-ferrous and cast materials in this C3 material grade classification. The insert is left-hand oriented with a neutral rake and a corner radius of 0.19 mm (0.0075 inches). Machinists and CNC turning specialists install this insert into compatible Top Notch toolholders for controlled, repeatable groove profiles.

This insert is intended for grooving and cutoff applications on manual and CNC turning equipment in both production and job-shop environments. The 55-degree included angle and 3-degree lead angle geometry supports consistent chip control in shallow to mid-depth groove profiles. It is appropriate for machining non-ferrous metals and similar workpiece materials where an uncoated carbide grade provides optimal edge retention and surface finish. Sold individually, with a minimum order quantity of 5 units per order.

Key Features

• Solid carbide construction, uncoated bright finish in K68 grade
• 1.98 mm (0.078 inches) cutting width for precise groove sizing
• Maximum depth of cut 2.39 mm (0.094 inches), within a range of 2.00 to 3.00 mm
• Left-hand insert orientation with neutral rake geometry
• 0.19 mm (0.0075 inches) corner radius for controlled groove profile
• Top Notch series NG3078 insert style, 55-degree included angle

Compatibility

Designed for use with Top Notch series toolholders and grooving systems that accept the NG3078 insert style. Verify toolholder seat geometry and clamping style before installation.

Installation Notes

This insert is installed and serviced by machinists and CNC turning technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench or insert-seating tool specified by the toolholder manufacturer to secure the insert without overloading the clamping screw. Inspect the toolholder seat for chips or wear before seating a new insert.