Hertel E1032903 Square End Mill 1-1/8 in 6 Flute Hss

Product Description

The HERTEL E1032903 is a 6-flute square end mill designed for milling operations in ferrous and non-ferrous metals where a flat-bottomed cut is required. Manufactured from M7 high speed steel in an uncoated finish, it features a 1.125-inch cutting diameter, a 2-inch length of cut, and a 30-degree helix angle with spiral fluting. The right-hand cut and right-hand flute geometry suit conventional milling setups. This is a single-end, regular-length tool intended for use in CNC machining centers and manual knee mills operated by machinists and tool-and-die professionals.

This end mill is suited for peripheral and slot milling in steel, cast iron, and similar materials where HSS tooling is preferred over carbide due to toughness requirements or machine rigidity limitations. The 1-inch shank diameter fits standard ER collets, end mill holders, and Weldon-style holders common in job shop and production environments. The 4.5-inch overall length keeps the tool compact for rigidity in general-purpose milling work. The non-centercutting geometry means plunge cuts should be avoided; ramp or helical entry is recommended where full-depth entry is needed.

Key Features

• M7 high speed steel construction for toughness in interrupted and general-purpose cuts
• 6-flute design increases feed rate capability compared to 4-flute equivalents at similar chip loads
• 30-degree helix angle promotes smooth cutting action and reduced chatter
• Right-hand cut, right-hand spiral flute — compatible with standard spindle rotation
• Uncoated finish suitable for use with cutting fluids on a wide range of ferrous materials
• Non-centercutting — requires ramp or helical entry rather than direct plunge

Compatibility

Designed as a standard 1-inch shank square end mill compatible with ER collet chucks, end mill holders, and Weldon-style side-lock holders in CNC machining centers and manual mills accepting that shank diameter.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank to the minimum recommended engagement depth in the holder — typically no less than 1.5 times the shank diameter — and torque the retention mechanism per the holder manufacturer specification. Confirm runout with a dial indicator before commencing cuts.