Kennametal 5979198 Modular Cutoff Cutting Unit Head Size 50

Product Description

The KENNAMETAL 5979198 is a Size 50 modular cutoff cutting unit head designed for parting and grooving operations on CNC lathes and turning centers. Part of the Beyond Evolution series, this right-hand unit head accepts A2, A3, and A4 insert styles and delivers a maximum width of cut of 4mm (0.158 inches) with a maximum depth of cut of 26mm. The head length measures 61.75mm and the center-to-cutting-edge distance is 9.93mm. This tooling component is installed by machinists and CNC programmers working in metal-cutting production environments where consistent, repeatable cutoff performance is required.

This cutting unit head is suited for modular cutoff and grooving tooling systems used in production turning on both light and medium-duty workpieces. The right-hand orientation positions the cutting edge for standard spindle-forward cutoff passes. It fits into Size 50 modular toolholding systems and is designed to be paired with compatible Beyond Evolution insert grades for steel, stainless, and other common workpiece materials. No compatibility with specific machine or system families is listed in the available data beyond the Size 50 designation and Beyond Evolution series.

Key Features

• Beyond Evolution series modular cutoff unit head
• 4mm maximum width of cut (0.158 inches)
• 26mm maximum depth of cut for deep grooving and cutoff applications
• Right-hand cutting orientation for standard lathe setups
• Compatible with A2, A3, and A4 insert styles for flexible grade selection
• 61.75mm head length with 9.93mm center-to-cutting-edge measurement

Compatibility

Designed for use with Size 50 modular cutoff toolholding systems in the Beyond Evolution series, accepting A2, A3, and A4 style inserts.

Installation Notes

This cutting unit head is installed by qualified machinists or toolroom personnel. Before mounting or insert changes, ensure the machine spindle is fully stopped and the turret is in a safe index position with power locked out. Use calibrated torque tools per the toolholder manufacturer guidelines when securing the unit head to the modular shank. Verify insert seating and clamping before resuming cutting operations.