Hertel 62848494 Roughing End Mill 1/4 in 3 Flute Cobalt

Product Description

The HERTEL 62848494 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel with a TiAlN coating, it delivers heat resistance and edge retention during heavy cuts in alloy steels, stainless steels, and other tough workpiece materials. The 1/4 inch cutting diameter pairs with a 3/8 inch shank and three spiral flutes in a fine-pitch configuration. The fine pitch is optimized for chip control in interrupted cuts and full-slot operations. Right-hand cutting and right-hand flute direction are standard. This tool is installed and operated by machinists and CNC tooling professionals in job shop and production environments.

This end mill suits vertical machining centers, manual knee mills, and CNC milling setups where a 3/8 inch collet or end mill holder is available. The 5/8 inch length of cut supports shallow-to-medium depth passes, making it a practical choice for profiling, slotting, and roughing passes on ferrous and exotic alloy workpieces. The center-cutting geometry allows plunge entry where required. Single-end construction means the tool is replaced rather than flipped when worn.

Key Features

• M42 cobalt construction for elevated heat and wear resistance compared to standard M2 HSS
• TiAlN coating extends tool life in dry and semi-dry cutting conditions
• Three-flute fine-pitch design improves chip evacuation during roughing passes
• Center-cutting capable — supports direct plunge entry without a pilot hole
• Right-hand cut, right-hand spiral flute direction for conventional milling machine setups
• 3/8 inch shank accommodates standard collet chucks and end mill holders

Compatibility

Designed as an OEM-style replacement or direct-fit roughing end mill for machines equipped with a 3/8 inch end mill holder, collet chuck, or milling arbor accepting a straight shank tool.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully de-energized and locked out before changing tooling. Seat the 3/8 inch shank fully into the holder to the recommended minimum engagement depth per the holder manufacturer before torquing the set screw or collet nut. Do not exceed the tool's rated depth-of-cut for the workpiece material — consult the applicable speeds-and-feeds data for M42 cobalt end mills when programming the cut.