Cleveland C41248 Square End Mill 0.25 in 4 Flute Hss

Product Description

The CLEVELAND C41248 is a 4-flute, single-end square end mill manufactured from high speed steel (HSS) for general-purpose milling applications. With a 0.25-inch mill diameter and a 0.625-inch length of cut, this tool is sized for slotting, profiling, and peripheral milling in moderate material removal operations. The 0.375-inch straight-cylindrical shank with Weldon flat provides secure tool holding in standard end mill holders. A 30-degree helix angle and right-hand spiral flute geometry promote efficient chip evacuation. The uncoated HSS construction suits shops that need a cost-effective, resharpenable tool for lower-speed operations.

This end mill is suited for machining cast iron, non-ferrous metals, and steel in both manual and CNC milling setups. At 2.4375 inches overall length and a regular-length profile, it fits standard tool holding without extended-reach concerns. The center-cutting design allows direct plunge entry, making it practical for pocket milling without a pre-drilled start hole. It is part of the CLEVELAND HG-4C series and is sold as a single unit.

Key Features

• Center-cutting geometry allows direct plunge milling into workpiece material
• 30-degree helix angle promotes smooth chip flow and reduces cutting forces
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Straight-cylindrical shank with Weldon flat for positive tool holding
• Uncoated HSS construction supports resharpening and lower-speed applications
• Regular-length profile fits standard collets and end mill holders without modification

Compatibility

Designed for use with cast iron, non-ferrous metals, and steel workpieces. Compatible with standard 0.375-inch end mill holders and collet chucks accepting a straight-cylindrical or Weldon flat shank.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Torque the set screw against the Weldon flat to the tool holder manufacturer specification to prevent tool pullout under load. Verify runout with a dial indicator after installation before beginning a cut.