Cleveland C41254 Square End Mill 7/16 in 4 Flute Hss

Product Description

The CLEVELAND C41254 is a 4-flute square end mill designed for precision milling operations in metalworking applications. Manufactured from high speed steel (HSS), this tool features a 7/16-inch cutting diameter, a 1-inch length of cut (LOC), and a 3/8-inch straight cylindrical shank with Weldon flat. The 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Center-cutting geometry allows plunge entry directly into the workpiece. Overall length is 2-11/16 inches. This is a right-hand cut, right-hand flute configuration in the HG-4C series, delivered uncoated and ready for immediate use.

The C41254 is suited for milling cast iron, non-ferrous metals, and steel in standard shop and production environments. The regular-length geometry fits most vertical knee mills, CNC machining centers, and manual mills using standard 3/8-inch collets or end mill holders with Weldon flat set screws. Its spiral flute design and 4-flute count make it effective for slotting, peripheral milling, and profiling cuts where surface finish and tool rigidity both matter.

Key Features

• 7/16-inch cutting diameter with 1-inch length of cut for standard depth milling
• High speed steel construction suitable for cast iron, steel, and non-ferrous metals
• Center-cutting design permits direct plunge entry without pre-drilling
• 30-degree helix angle promotes smooth cutting and efficient chip flow
• Right-hand cut, right-hand spiral flute configuration
• 3/8-inch straight-cylindrical shank with Weldon flat for secure toolholder engagement
• Uncoated finish; part of the HG-4C series for general-purpose milling

Compatibility

Designed for use in standard 3/8-inch end mill holders, collet chucks, and Weldon-style toolholders on vertical milling machines and CNC machining centers. Compatible with primary workpiece materials including cast iron, non-ferrous metals, and steel as specified by the manufacturer.

Installation Notes

Installation is performed by qualified machinists or tool-and-die personnel. Ensure the machine spindle is fully stopped and the power is locked out before changing tooling. Secure the shank in a properly sized Weldon-flat holder or collet and torque the set screw or clamping mechanism per the toolholder manufacturer's specifications. Verify runout with a dial indicator before commencing cuts, and confirm spindle speed and feed rate match recommendations for the workpiece material and tool diameter.