Cleveland C41607 Square End Mill 1/4 in 2 Flute Hss

Product Description

The CLEVELAND C41607 is a 2-flute square end mill designed for general-purpose milling in steel, cast iron, and non-ferrous metals. Built from high speed steel (HSS) with a bright/uncoated finish, it measures 0.25 inches in diameter with a 0.5-inch length of cut and a 2.4375-inch overall length. The 30-degree right-hand helix promotes efficient chip evacuation and smooth cutting action. Centercutting geometry allows plunge entry, expanding its utility in slot milling, profiling, and pocketing operations. It is typically installed by machinists and toolroom technicians in manual mills and CNC machining centers.

This end mill is suited for light to medium-duty milling applications in job shops, maintenance facilities, and production environments. The 0.375-inch straight-cylindrical shank with a Weldon flat provides secure tool holding in standard end mill holders and set-screw collet chucks. Primary workpiece materials include cast iron, non-ferrous metals, and steel. The HG-2 series is sized for regular-length reach applications where tool deflection and overhang are not a primary concern.

Key Features

• 0.25-inch cutting diameter with 0.5-inch length of cut for precise slot and profile work
• High speed steel construction provides toughness and re-sharpenability
• 30-degree right-hand spiral flute promotes chip clearing and reduces heat buildup
• Centercutting design allows direct plunge milling without a pre-drilled hole
• Bright/uncoated finish compatible with a wide range of cutting fluids and lubricants
• Weldon flat on shank for positive grip in set-screw tool holders

Compatibility

Designed for use in standard end mill holders and collet chucks accepting a 0.375-inch straight-cylindrical shank with Weldon flat. Suitable for milling cast iron, non-ferrous metals, and steel workpieces on both manual and CNC milling machines.

Installation Notes

Installation is performed by a machinist or toolroom technician. Secure the shank fully into the tool holder and tighten the set screw against the Weldon flat before operation. Verify runout with a dial indicator after mounting to ensure accurate cutting and extended tool life. Always follow machine manufacturer guidelines for spindle speed and feed rate selection appropriate to the workpiece material and depth of cut.