Hertel 91196758 Roughing End Mill 14mm 4-flute Cobalt

Product Description

The HERTEL 91196758 is a single-end roughing end mill designed for aggressive material removal in ferrous and non-ferrous metals. Built from M42 cobalt high-speed steel and finished with a TiCN coating, it handles the heat and abrasion that come with heavy interrupted cuts. The cutter measures 14 mm (0.5512 inches) in diameter with a 12 mm (0.4724 inches) shank, a 26 mm (1.0236 inches) length of cut, and an 83 mm overall length. Four right-hand flutes in a fine pitch geometry break chips aggressively and reduce chatter during roughing passes. This tool is centercutting, allowing plunge entry where the operation calls for it.

This end mill is suited for use in CNC machining centers and manual knee mills where stock removal rate is the priority before a finishing pass. The TiCN coating extends tool life in alloy steels, tool steels, and cast iron. The M42 cobalt substrate provides additional hot hardness compared to standard M2 HSS, making it a practical choice in shops that run higher spindle speeds or work with tougher workpiece materials. It is a single-end tool, meaning it is replaced rather than flipped when the cutting end is worn.

Key Features

• M42 cobalt HSS substrate for elevated hot hardness and wear resistance
• TiCN coating reduces friction and extends cutting life in ferrous materials
• Fine pitch, 4-flute design promotes aggressive chip breaking during roughing
• Centercutting geometry allows direct plunge entry
• Right-hand cut and right-hand flute direction for standard spindle rotation
• 14 mm diameter with 12 mm shank for rigid tool holding

Compatibility

Designed for use in standard ER or straight-shank tool holders accepting a 12 mm shank diameter. Suitable as a roughing end mill in CNC machining centers and manual mills working ferrous and non-ferrous metals.

Installation Notes

This tool is installed by a machinist or tooling setup technician using an appropriate collet or end mill holder matched to the 12 mm shank diameter. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Verify runout at the collet before initiating a cut, as excessive runout accelerates edge wear and reduces surface quality. Follow the machine manufacturer and tooling guidelines for recommended speeds and feeds based on workpiece material.