Cleveland C33410 Square End Mill 5/16 in 4 Flute Hss Ticn

Product Description

The CLEVELAND C33410 is a 4-flute, single-end square end mill designed for precision milling in ferrous and non-ferrous materials. Manufactured from high speed steel with a titanium carbonitride (TiCN) finish, this tool offers improved surface hardness and wear resistance over uncoated HSS. The 5/16-inch cutting diameter, 1-3/8-inch length of cut, and 30-degree helix angle make it well suited for slotting, profiling, and peripheral milling operations. The centercutting geometry allows plunge entry directly into the workpiece. It is installed by machinists and toolroom technicians operating manual or CNC milling equipment.

This end mill is designed for use on cast iron, non-ferrous metals, and steel workpieces. The straight-cylindrical shank with Weldon flat accommodates standard side-lock tool holders with a 3/8-inch bore. At 3-1/8 inches overall length with a regular-length reach classification, it fits most standard knee mills, vertical machining centers, and CNC mills in job shop and production environments. The HG-4C series targets general-purpose milling applications where tool life and finish quality are priorities.

Key Features

• TiCN coating increases surface hardness and extends tool life over bare HSS
• Centercutting design allows direct plunge milling without pre-drilling
• 30-degree right-hand spiral flute improves chip evacuation and surface finish
• Weldon flat shank provides positive drive and reduces tool pullout risk in side-lock holders
• 4-flute configuration balances material removal rate with chip clearance for steel and cast iron
• Right-hand cut and right-hand flute geometry compatible with standard spindle rotation

Compatibility

Designed for use with 3/8-inch bore side-lock (Weldon flat) tool holders. Primary workpiece materials include cast iron, non-ferrous metals, and steel. Part of the CLEVELAND HG-4C series.

Installation Notes

Installation should be performed by a qualified machinist. Secure the tool in a properly sized side-lock holder and verify that the Weldon flat aligns with the set screw before torquing. Confirm spindle direction is set to right-hand rotation before engaging the cut. Inspect the tool for runout after installation and replace if chipping or excessive wear is observed on the cutting edges.