Hertel E107204801 Square End Mill 0.75in Hss 2 Flute

Product Description

The HERTEL E107204801 is a 2-flute, high speed steel square end mill designed for milling operations on ferrous and non-ferrous metals in machining centers and manual mills. Built to extra-long length specifications with a 4-inch length of cut and 6.25-inch overall length, it handles deep-reach slotting, profiling, and peripheral milling where standard-length tools cannot reach. The 42-degree helix angle promotes efficient chip evacuation and reduces cutting forces. Manufactured from M7 high speed steel in an uncoated finish, this end mill is suited for general-purpose cutting applications where regrinding is a common practice.

This end mill fits residential and commercial machine shop environments, tool rooms, and production floors. Its centercutting geometry allows plunge entry directly into the workpiece, making it practical for pocket milling without a pre-drilled entry hole. The right-hand cut, right-hand spiral flute configuration is the standard orientation for conventional CNC and manual milling machines. Extra-long length makes it appropriate for deep-cavity work, mold and die applications, and fixture fabrication where extended reach is required.

Key Features

• M7 high speed steel construction for toughness and regrindability
• 42-degree helix angle for aggressive chip evacuation and reduced cutting forces
• Centercutting design allows direct plunge entry without a pilot hole
• Extra-long length type with 4-inch length of cut for deep-reach applications
• Uncoated finish suitable for use with cutting fluid or oil mist lubrication
• Right-hand cut and right-hand flute direction for standard mill spindle use

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 0.75-inch collet chucks, end mill holders, and Weldon-shank toolholders on conventional and CNC vertical milling machines.

Installation Notes

Installation is performed by machining professionals using appropriate toolholders sized for a 0.75-inch shank diameter. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool. Confirm runout with a dial indicator after chucking, as excessive runout on a 2-flute end mill accelerates wear and degrades surface finish. Cutting parameters should be selected based on workpiece material, machine rigidity, and depth of cut.