Cleveland C41245 Square End Mill 3/16 in 4 Flute Hss

Product Description

The CLEVELAND C41245 is a 4-flute square end mill designed for precision milling operations in machine shops and production environments. Built from high speed steel (HSS), this single-end tool features a 3/16 inch cutting diameter, a 1/2 inch length of cut, and a 3/8 inch straight cylindrical shank with Weldon flat. The 30-degree helix spiral flute geometry promotes efficient chip evacuation and smooth cutting action. It is centercutting, allowing plunge entry as well as standard peripheral and slot milling. Installation and use are performed by machinists and CNC operators on milling machines and machining centers.

This end mill is suited for milling cast iron, non-ferrous metals, and steel in both manual and CNC milling applications. The HG-4C series designation indicates a regular-length, general-purpose geometry appropriate for a wide range of slotting, profiling, and face milling tasks. The right-hand cut and right-hand flute orientation are standard for conventional spindle setups. The uncoated HSS construction makes it a cost-effective choice for lower-speed operations and materials where carbide tooling is not required.

Key Features

• 4-flute spiral flute design for balanced cutting and chip evacuation
• Centercutting geometry allows direct plunge milling
• 30-degree helix angle for smooth engagement in steel, cast iron, and non-ferrous metals
• Straight cylindrical shank with Weldon flat for positive tool holding
• Uncoated high speed steel construction for general-purpose, lower-speed applications
• Right-hand cut and right-hand flute — standard orientation for conventional milling setups

Compatibility

Designed for use on manual and CNC milling machines accepting a 3/8 inch straight shank. Primary workpiece materials include cast iron, non-ferrous metals, and steel per the HG-4C series application range.

Installation Notes

Installation should be performed by qualified machinists following standard tooling procedures. Secure the shank fully in a collet or end mill holder, engaging the Weldon flat set screw to prevent axial pullout under load. Verify spindle speed and feed rate against the material being machined and the tool manufacturer's recommendations before operation. Never exceed the rated length of cut or apply side loads beyond the tool's design geometry.