Kennametal 5980939 Grooving Cutoff Toolholder Left Hand

Product Description

The KENNAMETAL 5980939 is an external indexable grooving and cutoff toolholder designed for precision groove machining on CNC lathes and turning centers. It accepts EG0300M03P02 inserts and holds them with a clamp-style mechanism for rigid, repeatable positioning. The toolholder features a 5/8 x 5/8 inch square shank and through-coolant capability to direct fluid directly to the cutting zone, improving chip evacuation and extending insert life. Part of the Beyond Evolution series, this left-hand holder is suited for operators running groove widths of 3 mm with a maximum depth of cut of 16 mm (0.63 inches). Machinists and CNC setup technicians are the primary installers.

This toolholder is used in external grooving and cutoff operations on turned components in both production and job-shop environments. The left-hand orientation suits specific machine configurations and tooling layouts on CNC turning centers. The Beyond Evolution series tooling system is built around consistent insert seating and through-coolant delivery, making it appropriate for high-volume turning applications where tool life and groove accuracy are critical. Compatible insert is the EG0300M03P02, and the holder carries a mount size of 1010.

Key Features

• Left-hand external grooving and cutoff orientation for specific CNC turning configurations
• Clamp-style insert holding method for secure, repeatable insert seating
• Through-coolant capability directs fluid to the cutting zone for improved chip control and tool life
• Accepts EG0300M03P02 inserts with a 3.0 mm insert seat size
• 5/8 x 5/8 inch square shank for standard tool block compatibility
• Part of the Beyond Evolution series, designed for consistent grooving performance

Compatibility

Compatible with EG0300M03P02 inserts. Designed for use in external grooving and cutoff applications on CNC lathes and turning centers that accept a 5/8 x 5/8 inch square shank toolholder with a 1010 mount size.

Installation Notes

Installation is performed by a qualified CNC machinist or tooling setup technician. The machine spindle must be fully stopped and the machine placed in a locked-out, tagged-out state before mounting or adjusting the toolholder. Confirm shank seating depth and clamp torque per the machine tool block specifications before running. Verify coolant line connections are secure before enabling through-coolant flow.