Hertel 72846322 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The HERTEL 72846322 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a Titanium Nitride (TiN) coating, it delivers extended tool life under high heat and interrupted-cut conditions. The cutter measures 1 inch in diameter with a 4-inch length of cut and a 6.5-inch overall length. Five coarse-pitch flutes break up chips efficiently, reducing cutting forces and heat buildup at the tool-workpiece interface. This end mill is center-cutting and configured for right-hand cutting and right-hand flute direction. Machinists and tool-and-die professionals use this type of cutter for roughing passes on ferrous and non-ferrous stock before finishing operations.

This roughing end mill is suited for use in vertical and horizontal milling machines, CNC machining centers, and manual knee mills where high-volume material removal is the priority. The coarse pitch geometry makes it appropriate for profiling, slotting, and peripheral milling in steel, stainless, and other tough alloys. The 1-inch shank diameter matches standard R8, CAT, BT, and HSK toolholders in that bore size. It is a single-end tool, meaning it is resharpened or replaced rather than flipped when the cutting end is worn.

Key Features

• M42 cobalt steel construction for heat resistance and hardness retention at elevated cutting temperatures
• Titanium Nitride (TiN) coating reduces friction and extends cutting edge life
• 5-flute coarse-pitch design accelerates chip evacuation and lowers radial cutting forces
• Center-cutting geometry allows plunge entry without a pre-drilled hole
• Right-hand cut and right-hand helix configuration for standard spindle direction
• 1-inch shank diameter matches 1-inch bore toolholders directly with no reduction needed

Compatibility

Designed as an OEM-style roughing end mill for use in standard 1-inch bore milling toolholders on CNC and manual milling machines.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the shank fully into a clean, undamaged collet, end mill holder, or milling chuck and torque the retention mechanism to the toolholder manufacturer's specification. Inspect the TiN coating and cutting edges before each use — do not run a chipped or cracked cutter. Follow your shop's lockout/tagout procedure before changing tooling in any spindle.