Cleveland C33439 Square End Mill 7/32 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33439 is a 4-flute, single-end square end mill designed for precision milling in ferrous and non-ferrous metals. Manufactured from high speed steel with a titanium nitride (TiN) finish, it delivers extended tool life and reduced friction during cutting operations. The spiral flute geometry at a 30-degree helix angle promotes efficient chip evacuation. With a 7/32-inch (0.2188-inch) cutting diameter and an extra-long overall length of 3-9/16 inches, this end mill is suited for deeper reach applications where standard-length tools fall short. It is centercutting, allowing plunge cuts directly into the workpiece without pre-drilling.

This end mill is intended for machining cast iron, non-ferrous metals, and steel. It fits standard vertical and horizontal milling machines as well as CNC machining centers accepting a 3/8-inch straight-cylindrical or Weldon flat shank. The 1-3/4-inch length of cut makes it appropriate for slotting, profiling, and side milling operations requiring extended reach into pockets or deep features. It belongs to the Cleveland HG-4C series, which is engineered for general-purpose cutting across a broad range of shop applications.

Key Features

• 4-flute configuration balances chip load and surface finish on ferrous and non-ferrous workpieces
• TiN coating increases surface hardness and reduces built-up edge in steel and cast iron
• 30-degree helix angle promotes smooth chip flow and reduces cutting forces
• Centercutting design permits direct plunge entry without a starter hole
• Extra-long OAL of 3-9/16 inches provides extended reach for deep-pocket milling
• Right-hand cut and right-hand flute geometry compatible with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for milling setups accepting a 3/8-inch straight-cylindrical or Weldon flat shank. Suitable for use on cast iron, non-ferrous metal, and steel workpieces per Cleveland HG-4C series specifications.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Secure the shank fully within the tool holder to the recommended engagement depth for the holder type in use. Verify runout with a dial indicator after installation before beginning any cutting operation.