Hertel 84511468 Roughing End Mill 3/8 in 4 Flute Cobalt

Product Description

The HERTEL 84511468 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel and finished with a TiAlN coating, this tool handles tough ferrous and exotic alloy workpieces. The coarse-pitch, 4-flute geometry creates a chip-breaking action that reduces cutting forces and heat buildup during heavy roughing passes. The 3/8 inch diameter and 3/8 inch length of cut make it well suited for slotting, profiling, and pocketing operations where material removal rate matters more than surface finish. Installation and use require a compatible end mill holder or collet chuck on a vertical or horizontal milling machine.

This end mill is intended for use in machine shop environments, toolrooms, and production floor settings. The right-hand cutting and right-hand flute direction are standard for conventional CNC and manual milling machines. The TiAlN coating provides thermal resistance, extending tool life in dry or minimal-lubrication cutting conditions. The coarse pitch is particularly effective when roughing stainless steel, tool steel, titanium, and other difficult-to-machine alloys where chip evacuation is critical. It is a single-piece, single-end tool packaged individually.

Key Features

• M42 cobalt construction for elevated heat and wear resistance
• TiAlN coating extends tool life in dry and hard-material cutting
• Coarse-pitch flute geometry reduces cutting forces during heavy roughing
• Center-cutting design allows plunge entry into workpiece
• Right-hand cut and right-hand helix for use on standard milling equipment
• Single-end configuration with 3/8 inch shank for direct chuck mounting

Compatibility

Designed as an OEM-style replacement and standard tooling option for 3/8 inch end mill holders, collet chucks, and milling fixtures requiring a 3/8 inch shank roughing end mill.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the end mill. Torque the set screw or collet nut according to the tool holder manufacturer specifications. Confirm runout with a dial indicator before beginning cuts, as excessive runout accelerates edge wear on roughing geometry.