Hertel 91196741 Roughing End Mill 12mm 4 Flute Cobalt

Product Description

The HERTEL 91196741 is a single-end roughing end mill built for aggressive material removal in milling applications. Manufactured from M42 cobalt high-speed steel and coated with TiCN, it delivers improved wear resistance and heat tolerance compared to standard HSS tooling. The cutter measures 12 mm in diameter with a 53 mm length of cut and 110 mm overall length, making it well suited to medium-depth roughing passes. Four right-hand flutes with a fine pitch geometry break up chips efficiently, reducing cutting forces and heat buildup during heavy stock removal. Center-cutting capability allows plunge entry without a pre-drilled pilot hole.

This end mill is used in manual and CNC vertical milling machines for roughing operations on steel, stainless steel, and other ferrous materials. It is a practical choice for tool rooms, job shops, and maintenance machining environments where cobalt tooling is specified for tougher workpiece materials. The 12 mm shank diameter matches the cutting diameter, allowing direct chuck or collet mounting without a reducer. Right-hand cutting direction suits standard spindle rotation on conventional knee mills and machining centers alike.

Key Features

• M42 cobalt HSS construction for elevated heat and wear resistance over standard HSS grades
• TiCN coating extends tool life and reduces built-up edge on ferrous materials
• 4 right-hand flutes with fine pitch for efficient chip evacuation during roughing
• Center-cutting design allows direct plunge entry
• 12 mm cutting diameter with 53 mm length of cut for medium-depth passes
• Single-end configuration; right-hand flute and cutting direction

Compatibility

Designed as a direct-fit roughing end mill for standard 12 mm collets, ER collet chucks, and end mill holders used on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down before loading or unloading the tool. Use a properly sized collet or end mill holder torqued to the machine manufacturer's specification to prevent pullout during heavy cuts. Inspect the cutting edges and coating for damage before each use; do not run a chipped or heavily worn tool.