Hertel 62914049 Roughing End Mill 3/8 in 4 Flute Cobalt

Product Description

The HERTEL 62914049 is a single-end roughing end mill designed for aggressive material removal in metalworking applications. Built from M42 cobalt high-speed steel and finished with a TiAlN coating, it delivers improved heat resistance and extended tool life compared to standard HSS tooling. The 3/8 inch diameter cutter features four right-hand spiral flutes with a fine pitch serrated profile that breaks chips into smaller segments, reducing cutting forces and allowing higher feed rates. With a 1.5 inch length of cut and 3.25 inch overall length, it fits standard toolholders used on knee mills, machining centers, and CNC routers. Installation and use requires a licensed machinist or qualified tooling technician.

This roughing end mill is suited for hogging operations in ferrous and non-ferrous materials including alloy steels, stainless steels, and cast iron. The TiAlN coating performs well in dry or minimal-lubrication cutting environments where heat buildup is a concern. The fine-pitch serration pattern is particularly effective in interrupted cuts and side-milling passes where vibration and chatter must be controlled. It is a practical first-pass tool before finishing with a standard end mill.

Key Features

• M42 cobalt steel construction for superior hardness and heat resistance over standard M2 HSS
• TiAlN coating extends tool life in dry and high-speed cutting conditions
• Four right-hand spiral flutes with fine-pitch serration for reduced cutting forces and efficient chip evacuation
• 3/8 inch shank diameter matches cutter diameter for direct collet or end mill holder mounting
• Non-centercutting design — intended for peripheral and side-milling, not plunge entry
• Single-end configuration with right-hand cutting direction

Compatibility

Designed as an OEM-style replacement or direct-use roughing end mill compatible with standard 3/8 inch collets, end mill holders, and Weldon-shank toolholders used on manual and CNC milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop-standard toolholding procedures. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool. Verify that the toolholder is clean and free of debris before seating the shank, and confirm runout with a dial indicator before beginning a cut. Because this is a non-centercutting end mill, do not attempt plunge drilling with this tool.