Cleveland C33441 Square End Mill 9/32 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33441 is a 4-flute, single-end square end mill designed for precision milling in ferrous and non-ferrous materials. Ground from high speed steel (HSS) and coated with a titanium nitride (TiN) finish, it delivers consistent cutting performance across cast iron, non-ferrous metals, and steel. The mill measures 0.2813 inches in diameter with a 2-inch length of cut and a 3/8-inch straight-cylindrical shank with a Weldon flat for secure tool holding. A 30-degree helix spiral flute geometry and centercutting capability allow for both peripheral and plunge cutting operations. Overall length is 3.25 inches, placing this in the extra-long length category.

The C33441 is suited for general-purpose slot milling, profiling, and pocketing on machining centers, knee mills, and manual mills. The extra-long length of cut makes it appropriate for applications requiring deeper reach than standard-length tooling allows. Right-hand cut and right-hand flute orientation match conventional spindle rotation on most vertical milling setups. The HG-4C series targets production environments where tool life and surface finish on cast iron and steel workpieces are priorities.

Key Features

• 0.2813-inch (9/32 inch) mill diameter with 2-inch length of cut for extra-long reach
• 4-flute spiral geometry with 30-degree helix angle for efficient chip evacuation
• TiN coating improves surface hardness and extends tool life versus uncoated HSS
• Centercutting design allows direct plunge entry into workpiece material
• Weldon flat on 3/8-inch straight shank provides positive anti-rotation seating in end mill holders
• Right-hand cut and right-hand flute for standard spindle compatibility

Compatibility

Designed for use in standard 3/8-inch end mill holders, collet chucks, and Weldon-flat tool holders on vertical machining centers and manual knee mills. Rated for cast iron, non-ferrous metals, and steel workpiece materials per Series HG-4C application guidelines.

Installation Notes

Installation is performed by a machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the Weldon flat against the set screw in the holder to prevent axial pullout under cutting loads. Verify runout with a dial indicator after clamping, particularly given the extra-long length-to-diameter ratio, to minimize deflection during cuts.