Cleveland C33178 Square End Mill 1 in 4 Flute Hss

Product Description

The CLEVELAND C33178 is a 4-flute, single-end square end mill ground from high speed steel (HSS) for general-purpose milling in machine shops and production environments. The cutter measures 1 inch in diameter with a 1-7/8 inch length of cut, a 5/8 inch straight-cylindrical shank with Weldon flat, and a 4 inch overall length. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. The uncoated HSS construction is well-suited to applications where regrinding is preferred over disposable carbide tooling. This tool is centercutting, allowing plunge entry without a pre-drilled hole.

The C33178 is rated for milling cast iron, non-ferrous metals, and steel. It fits standard milling machine spindles and CNC machining centers accepting a 5/8 inch straight or Weldon-flat shank. Typical applications include face milling, slot milling, shoulder milling, and plunge cuts in job-shop and production settings. The regular-length body and 1-7/8 inch length of cut fall within the 1.5 to 2.0 inch length-of-cut range for this series, making it a practical general-purpose selection across a broad range of workpiece materials.

Key Features

• 1 inch mill diameter with 1-7/8 inch length of cut for versatile slot and shoulder work
• 4-flute, spiral-flute geometry with 30-degree helix for efficient chip removal
• Centercutting design allows direct plunge entry into workpiece material
• Right-hand cut, right-hand flute configuration for standard spindle direction
• 5/8 inch straight-cylindrical shank with Weldon flat for positive drive retention
• Uncoated high speed steel construction supports regrinding and resharpening

Compatibility

Designed for use with milling machines and CNC machining centers accepting a 5/8 inch straight or Weldon-flat shank. Rated for primary workpiece materials including cast iron, non-ferrous metals, and steel per Series HG-4C specifications.

Installation Notes

Installation and tooling changes must be performed by a qualified machinist with the machine fully powered down and the spindle locked. Seat the Weldon flat securely against the set screw in the tool holder before torquing to prevent tool pull-out under load. Inspect the cutting edges for chips or wear before each use. Follow applicable shop safety procedures and machine manufacturer guidelines when setting tool offsets and depths of cut.