Cleveland C33249 Square End Mill 17/64 in 4 Flute Hss Ticn

Product Description

The CLEVELAND C33249 is a four-flute, single-end square end mill ground from high speed steel and finished with a titanium carbonitride (TiCN) coating. It carries a cutting diameter of 17/64 inches (0.2656 inches decimal) with a 3/4-inch length of cut and a 3/8-inch straight cylindrical shank that also accepts a Weldon flat retention style. The spiral flute geometry runs at a 30-degree helix angle, and the tool is center-cutting, allowing both plunge and peripheral milling operations. It belongs to Cleveland's HG-4C series, designed for consistent performance in general-purpose milling applications on a variety of workpiece materials.

This end mill is suited for milling cast iron, non-ferrous metals, and steel in production and job-shop environments. The TiCN coating increases surface hardness and reduces friction at the cutting edge, extending tool life compared to uncoated HSS tooling. Right-hand cut and right-hand flute orientation make it compatible with standard CNC machining centers and manual milling machines. The regular-length profile and 2-1/2-inch overall length keep the tool compact for stable setups in typical depth-of-cut applications.

Key Features

• 17/64 inch (0.2656 inch) cutting diameter with 3/4-inch length of cut
• TiCN coating for improved wear resistance and longer tool life over uncoated HSS
• 30-degree helix angle spiral flute for efficient chip evacuation
• Center-cutting design allows direct plunge entry into workpiece
• Right-hand cut, right-hand flute — compatible with standard spindle rotation
• 3/8-inch straight cylindrical shank with Weldon flat option for positive tool holding

Compatibility

Designed for use on cast iron, non-ferrous metals, and steel workpieces. Fits standard 3/8-inch end mill holders, collet chucks, and Weldon-flat set-screw holders on CNC machining centers and manual knee mills.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and the control in a safe, locked-out state per OSHA lockout/tagout requirements. Seat the shank fully into the holder and torque set screws to the holder manufacturer's specification before beginning a cut. Inspect the cutting edges and coating for chips or wear before each use; damaged tooling should be removed from service immediately.