Hertel 62888870 Roughing End Mill 7/16 Inch 4 Flute Cobalt

Product Description

The HERTEL 62888870 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a TiAlN coating, this tool handles heat and wear in demanding cutting environments. It features a 7/16-inch cutting diameter, a 3/8-inch shank diameter, and a 1-inch length of cut with a 2-11/16-inch overall length. The coarse-pitch spiral flute geometry and right-hand cutting direction make it well suited for roughing passes on ferrous metals and hard alloys. Machinists and toolroom operators working on CNC mills, knee mills, or manual milling machines will reach for this tool when fast stock removal is the priority.

This roughing end mill is used in metalworking shops, manufacturing facilities, and maintenance toolrooms. The coarse pitch geometry breaks chips aggressively, reducing heat buildup and tool deflection during heavy roughing passes. With centercutting capability, it can be plunged directly into the workpiece without a pre-drilled hole. It is a practical choice for roughing operations on steel, stainless steel, and other ferrous materials where a finishing pass will follow.

Key Features

• M42 cobalt high-speed steel construction for heat and wear resistance
• TiAlN coating extends tool life in high-temperature cutting applications
• Coarse-pitch spiral flutes promote aggressive chip evacuation during roughing
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard milling spindles
• Single-end configuration with a reduced 3/8-inch shank for common collet and end mill holder compatibility

Compatibility

Designed for use in standard end mill holders, collet chucks, and milling machine spindles accepting a 3/8-inch shank diameter.

Installation Notes

Installation and tool changes should be performed with the milling machine fully powered down and spindle at a complete stop. Use a properly sized collet or end mill holder torqued according to the machine and toolholder manufacturer guidelines. Verify runout after installation before beginning the cut. Tool selection, speeds, and feeds should follow established machining practice for the workpiece material and machine rigidity.