Cleveland C33179 Square End Mill 1 in 4 Flute Hss

Product Description

The CLEVELAND C33179 is a 4-flute, square-end, single-end mill ground from high speed steel (HSS) for use in milling operations on cast iron, non-ferrous metals, and steel. It carries a 1 inch cutting diameter with a 1-7/8 inch length of cut, and mounts on a 3/4 inch straight-cylindrical or Weldon flat shank. Overall length is 4-1/8 inches. The spiral flute geometry runs at a 30-degree helix angle, promoting chip evacuation and consistent surface finish across a range of workpiece materials. This is an uncoated, right-hand cut, right-hand flute tool in the HG-4C series.

The C33179 is suited to general-purpose peripheral and slot milling in job shop, production, and maintenance machining environments. The centercutting design allows direct plunge entry into the workpiece without a pre-drilled hole. Regular length classification makes it a practical choice for face milling, profiling, and pocketing operations on ferrous and non-ferrous materials where a standard reach is sufficient. It is intended for use in CNC machining centers and manual knee mills with a 3/4 inch collet or end mill holder.

Key Features

• 4-flute spiral geometry with 30-degree helix angle for balanced chip load and smooth cutting action
• Centercutting design permits plunge milling without a pilot hole
• Right-hand cut and right-hand flute configuration — compatible with standard spindle rotation
• High speed steel construction — regrindable and suitable for interrupted cuts
• Straight-cylindrical shank with Weldon flat option for positive holder engagement
• Uncoated finish — ready for use with cutting fluid or dry in appropriate materials

Compatibility

Designed for use with cast iron, non-ferrous metals, and steel workpieces as specified by the manufacturer. Part of the Cleveland HG-4C series of regular-length square end mills.

Installation Notes

Installation and tooling changes must be performed with the machine spindle at a complete stop and the machine control in a locked-out state per applicable shop safety procedures. Secure the shank fully in a 3/4 inch end mill holder or collet, ensuring the Weldon flat aligns with the set screw when using a Weldon-style holder. Confirm runout with a dial indicator before beginning cuts. Cutting fluid selection should match the workpiece material per the machine shop's standard practice.