Harvey Tool 944816-C4 Square End Mill 1/4 in 8 Flute Carbide

Product Description

The HARVEY TOOL 944816-C4 is a solid carbide square end mill designed for precision milling operations in demanding machining environments. With a 0.25-inch cutter diameter and a 0.75-inch length of cut, this single-end tool delivers consistent performance in tight-tolerance applications. Eight flutes provide a high flute count for improved surface finish and material removal in finish-pass operations. The amorphous diamond coating increases surface hardness and reduces friction, making this end mill well-suited for machining abrasive non-ferrous materials, composites, and graphite. Right-hand cutting direction with a 10-degree helix angle supports chip flow and edge stability during cuts.

This end mill is intended for use in CNC machining centers and manual mills where fine surface finish and dimensional accuracy are required. The 0.25-inch shank diameter fits standard ER collets and end mill holders commonly found in production and toolroom environments. With a 2.5-inch overall length, the tool maintains rigidity while providing adequate reach for most shallow-to-mid-depth milling operations. Machinists working with abrasive plastics, carbon fiber reinforced polymers, green ceramics, or high-silicon aluminum alloys will find the amorphous diamond coating particularly effective at extending tool life.

Key Features

• 0.25-inch cutter diameter with 0.75-inch length of cut for precise shallow milling
• 8-flute geometry for improved surface finish and reduced chip load per flute
• Amorphous diamond coating for high hardness and abrasion resistance in non-ferrous and composite materials
• Solid carbide construction provides rigidity and wear resistance
• Single-end design with right-hand cutting direction
• 10-degree helix angle supports chip evacuation and edge stability

Compatibility

Designed for use in standard CNC machining centers and manual mills accepting a 0.25-inch shank diameter via ER collet or end mill holder. Suitable for milling abrasive non-ferrous materials, composites, graphite, and similar applications where a diamond-coated carbide tool is appropriate.

Installation Notes

Installation should be performed by a qualified machinist familiar with tooling setup and CNC or manual mill operation. Ensure the spindle is fully powered down and at rest before changing tooling. Secure the shank in a clean, properly sized collet or end mill holder to the appropriate clamping torque per the holder manufacturer's specifications. Inspect the cutting edges and coating for chips or damage before each use, and do not use this tool on ferrous metals, as diamond coatings react adversely with iron-based materials at cutting temperatures.