Hertel 750666 Square End Mill 7/32 in 2 Flute Solid Carbide

Product Description

The HERTEL 750666 is a solid carbide square end mill designed for precision milling operations in metal and composite materials. It features a 7/32 inch (0.2188 inch) cutting diameter with a 5/8 inch length of cut, a 1/4 inch shank diameter, and a 2-1/2 inch overall length. The two-flute spiral design runs at a 30-degree helix angle with a titanium nitride (TiN) coating, promoting heat resistance and longer tool life. This is a right-hand cut, centercutting end mill, meaning it can plunge directly into the workpiece. Machinists and tool-and-die professionals use this tool in CNC machining centers and manual mills for slotting, profiling, and plunge cuts.

This end mill is suited for use in light to medium stock removal applications on ferrous and non-ferrous metals, plastics, and similar materials. The single-end configuration and compact geometry make it a practical choice for tight-tolerance work where a smaller cutting diameter is required. The 1/4 inch shank allows use in standard collet chucks and end mill holders commonly found in both CNC and manual milling setups. It is typically installed by machinists, tool-and-die makers, and maintenance technicians.

Key Features

• Solid carbide construction for rigidity and wear resistance
• TiN coating improves surface hardness and reduces friction at the cutting edge
• 30-degree helix angle promotes smooth chip evacuation in spiral flute geometry
• Centercutting design enables direct plunge milling without a pre-drilled pilot hole
• Right-hand cut with two flutes for efficient chip clearance in slotting and profiling
• 1/4 inch shank fits standard collet and end mill holder tooling

Compatibility

Designed as an OEM-style solid carbide square end mill suitable for use in CNC machining centers, knee mills, and manual milling machines equipped with a 1/4 inch collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist following standard toolroom practices. Power down and lock out the machine spindle before changing tooling. Seat the shank fully into the collet or holder to the recommended engagement depth before tightening. Verify runout with a dial indicator after installation and before initiating a cut to avoid premature tool wear or workpiece damage.