Hertel C430L3750-C4 Roughing End Mill 3/8 in 4 Flute

Product Description

The HERTEL C430L3750-C4 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from micrograin solid carbide and coated with TiCN, it delivers the hardness and heat resistance required for high-feed roughing passes on ferrous and non-ferrous materials. The chipbreaker geometry reduces cutting forces and chip load, allowing heavier depths of cut without excessive heat buildup. With a 3/8 inch diameter, 4 flutes, and a 1-1/8 inch length of cut, this tool is suited for machining centers and CNC mills running right-hand spindle rotation.

This end mill is used in job shop, production, and maintenance machining environments where roughing cycle times need to be reduced before a finishing pass. The 3/8 inch shank and regular-length geometry make it compatible with standard collet chucks, end mill holders, and shrink-fit tooling with 3/8 inch bore. Typical applications include slotting, profiling, and peripheral roughing in steel, stainless, cast iron, and hardened materials where TiCN coating provides the necessary wear resistance. A licensed machinist or CNC operator typically selects and installs this tool.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• TiCN coating improves wear resistance and reduces friction at the cutting edge
• Chipbreaker flute geometry reduces cutting forces during aggressive roughing passes
• 4 right-hand flutes with right-hand cutting direction for standard spindle setups
• Centercutting design allows plunge entry into workpiece material
• Shank diameter tolerance of +0.0001 to -0.0004 inches ensures consistent tool holding

Compatibility

Designed as an OEM-style replacement or direct-use roughing end mill for CNC machining centers and manual mills accepting 3/8 inch straight-shank toolholders including collet chucks, end mill holders, and shrink-fit systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine spindle fully stopped and locked out per facility lockout/tagout procedures. Ensure the toolholder bore is clean and free of chips before seating the shank. Torque the retention mechanism per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a cutting program to confirm proper seating and avoid premature edge wear.