Kennametal 1113580 NG3156 K68 Grooving Insert Top Notch

Product Description

The KENNAMETAL 1113580 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and parting operations on CNC lathes and turning centers. Manufactured in grade K68 with a bright, uncoated finish, this insert delivers consistent cutting performance in non-ferrous metals, cast iron, and abrasive workpiece materials where coating is not required. The right-hand orientation, neutral rake geometry, and 3.96 mm cutting width make it a reliable choice for precision groove profiles. Installation is straightforward for qualified machinists and toolroom technicians working with compatible Top Notch toolholders.

This insert is suited for production and job-shop turning environments where groove width accuracy and depth control are critical. The 3.96 mm cutting width and a maximum depth of cut of 3.81 mm support groove profiles in a range of workpiece diameters. The 0.19 mm corner radius reduces stress concentration at the groove base without introducing excessive burr. It is appropriate for both residential machine shops and industrial manufacturing cells requiring repeatable, high-quality groove geometry.

Key Features

• Solid carbide construction in manufacturer grade K68, material grade C3, suited for non-ferrous and abrasive materials
• Bright, uncoated finish for direct cutting performance without coating-induced dimensional offset
• 3.96 mm cutting width with a 3.81 mm maximum depth of cut for controlled groove profiles
• 0.19 mm corner radius reduces stress at groove root while maintaining profile accuracy
• Neutral rake geometry and right-hand orientation for stable, consistent chip formation
• Part of the Top Notch series for use with compatible Top Notch grooving toolholders

Compatibility

Designed for use with KENNAMETAL Top Notch series grooving toolholders that accept NG-style inserts. Cross-reference manufacturer number NG3156R/L for holder compatibility verification.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or toolroom technician. Always power down and lock out the machine spindle before changing inserts. Ensure the insert pocket and clamping seat are clean and free of chips or debris before seating the insert. Follow the toolholder manufacturer torque and clamping specifications for the specific Top Notch holder in use.