Cleveland C33778 Square End Mill 19/32 Inch 2 Flute Hss Tin

Product Description

The CLEVELAND C33778 is a 2-flute, high speed steel square end mill designed for material removal in ferrous and non-ferrous machining applications. The cutter measures 19/32 inches (0.5938 inches) in diameter with a 1-1/8 inch length of cut and a straight-cylindrical, Weldon Flat shank at 1/2 inch diameter. A titanium nitride (TiN) coating improves surface hardness and wear resistance, extending tool life in production environments. The 30-degree spiral flute geometry promotes chip evacuation and reduces cutting forces. Overall length is 3-3/8 inches. This end mill is installed by machinists and toolroom technicians working on CNC mills, knee mills, and manual milling machines.

The C33778 is suited for milling cast iron, non-ferrous metals, and steel in both roughing and finishing passes at regular reach. The centercutting design allows plunge entry, making it practical for slot milling, pocket milling, and ramping operations. The HG-2 series designation indicates a general-purpose high speed steel geometry with right-hand cut and right-hand flute orientation, appropriate for conventional and climb milling. Primary workpiece materials supported include cast iron (ISO K), non-ferrous metals (ISO N), and steel (ISO P).

Key Features

• 19/32 inch (0.5938 inch) cutting diameter with 1-1/8 inch length of cut
• 2-flute spiral geometry at 30-degree helix angle for efficient chip evacuation
• TiN finish for improved wear resistance and tool life
• Centercutting construction permits direct plunge entry
• Straight-cylindrical shank with Weldon Flat for secure toolholder retention
• Right-hand cut, right-hand flute — compatible with standard milling spindle rotation

Compatibility

Designed for use with standard 1/2 inch end mill holders, collet chucks, and Weldon-style set-screw toolholders on CNC and manual milling machines. Primary workpiece materials are cast iron, non-ferrous metals, and steel as indicated by ISO material codes K, N, and P.

Installation Notes

Installation should be performed by a qualified machinist with the spindle fully powered down and the machine in a locked-out state before tool changes. Seat the Weldon Flat against the toolholder set screw and torque to the toolholder manufacturer specification. Verify runout with a dial indicator before initiating cuts. Cutting parameters such as speed and feed should be selected based on workpiece material, machine rigidity, and depth of cut following the tool manufacturer guidelines.