Cleveland C33079 Square End Mill 7/16 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33079 is a double-end, four-flute square end mill designed for material removal and profiling operations on milling machines and machining centers. Built from high speed steel with a titanium nitride (TiN) finish, it measures 0.4375 inches in cutting diameter with a 1-inch length of cut and a 0.5-inch straight-cylindrical shank with a Weldon flat for positive clamping. The 30-degree spiral flute geometry promotes efficient chip evacuation, and the centercutting design allows plunge entry directly into the workpiece. At 4.5 inches overall length, this regular-length tool suits a wide range of standard milling setups.

The C33079 is suited for ferrous and non-ferrous machining in job shop, maintenance, and production environments. Primary workpiece materials include cast iron, non-ferrous metals, and steel. The right-hand cut and right-hand flute orientation are standard for conventional vertical and horizontal milling applications. The double-end configuration extends tool life by providing two usable cutting ends before the tool is retired, making it a cost-effective choice for shops running high-speed steel tooling programs.

Key Features

• Double-end design provides two cutting ends for extended tool life
• TiN coating increases surface hardness and reduces friction on cutting edges
• Centercutting geometry allows direct plunge milling without a pre-drilled pilot hole
• 30-degree helix angle promotes smooth chip flow on cast iron, steel, and non-ferrous materials
• Weldon flat on straight-cylindrical shank provides secure, anti-pullout clamping in set-screw holders
• Series HD-4C regular-length format fits standard toolholders without extended-reach considerations

Compatibility

Designed for use in standard straight-shank end mill holders and Weldon-flat side-lock holders accepting a 0.5-inch shank diameter. Compatible with cast iron, non-ferrous metal, and steel workpiece materials per the manufacturer Series HD-4C specification.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the Weldon flat fully against the set screw in the holder and torque to the holder specification before running. Inspect cutting edges for chipping or wear before each use; a damaged end mill should not be placed back in service.