Hertel C430L6250-C4 Roughing End Mill 5/8 in 4 Flute

Product Description

The HERTEL C430L6250-C4 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from micrograin solid carbide and coated with TiCN, it delivers the wear resistance and edge retention needed for demanding cutting operations. The 5/8 inch diameter tool features four flutes with a chipbreaker geometry that breaks chips into shorter segments, reducing heat buildup and cutting forces during heavy roughing passes. It is center-cutting and right-hand cutting with a right-hand flute direction. Licensed machinists and CNC operators in job shops, production facilities, and tool rooms are the primary installers and users of this tool.

This end mill is suited for roughing passes on ferrous and non-ferrous metals where chip control is critical. The regular-length configuration with a 2.25 inch length of cut and 5 inch overall length makes it a practical choice for standard-depth slotting, profiling, and peripheral milling setups on vertical and horizontal machining centers. The TiCN coating provides added lubricity and surface hardness, extending tool life compared to uncoated carbide in similar applications.

Key Features

• Micrograin solid carbide construction for hardness and wear resistance
• TiCN coating improves surface hardness and reduces friction during cutting
• Chipbreaker geometry reduces chip load and heat buildup on roughing passes
• Center-cutting design allows plunge entry into workpiece material
• Right-hand cutting and right-hand flute direction for standard spindle use
• Shank diameter tolerance of +0.0001 to -0.0004 inches ensures consistent toolholder fit

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide roughing end mill for standard 5/8 inch toolholders and collet chucks on CNC machining centers and manual mills.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the toolholder. Verify that the toolholder bore and collet are clean and free of chips before seating the shank. Confirm runout with a dial indicator after clamping to avoid premature tool wear or workpiece damage.