Hertel 44839355 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The HERTEL 44839355 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a bright, uncoated finish, it delivers the heat resistance and edge toughness needed for interrupted cuts and high-feed roughing passes. The cutter measures 1 inch in diameter with a 1.125-inch length of cut and a 3.625-inch overall length. Its coarse-pitch, 5-flute configuration evacuates chips efficiently while maintaining rigidity. This tool is installed and operated by machinists and tool-and-die professionals working on manual or CNC milling equipment.

This roughing end mill is suited for roughing passes on ferrous and difficult-to-machine alloys in job shop, production, and tool room environments. The right-hand cut and right-hand flute direction make it compatible with standard spindle configurations. The 1-inch shank diameter matches the cutter diameter, simplifying setup in collet chucks, end mill holders, or milling chucks. It is a single-end tool, so it is replaced rather than reindexed when the cutting edge is worn.

Key Features

• M42 cobalt HSS construction for heat resistance and edge retention in tough alloys
• 5-flute coarse-pitch geometry for high material removal rates with efficient chip evacuation
• Bright, uncoated finish suitable for dry cutting or use with conventional cutting fluids
• Right-hand cut and right-hand flute direction for standard spindle compatibility
• 1-inch shank diameter matches cutter diameter for straightforward toolholder setup
• Non-centercutting design intended for side milling and peripheral roughing, not plunge cutting

Compatibility

Designed as a direct-fit roughing end mill for standard 1-inch bore end mill holders, collet chucks, and milling chucks used in vertical and horizontal milling applications.

Installation Notes

Installation should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked-out state per applicable machine guarding and OSHA lockout/tagout procedures. Seat the shank fully into the toolholder and torque the retention fastener to the toolholder manufacturer specification. Because this is a non-centercutting tool, do not program plunge moves directly into solid material. Confirm runout with a dial indicator before beginning cuts.