Hertel 750443 Square End Mill 5/16 in 4 Flute Solid Carbide

Product Description

The HERTEL 750443 is a solid carbide square end mill designed for precision material removal in milling operations. Built from micrograin carbide and finished with an AlTiN (aluminum titanium nitride) coating, this tool delivers improved heat resistance and tool life in ferrous and non-ferrous cutting applications. It features a 5/16 inch cutting diameter, a 1-1/8 inch length of cut, and a 3 inch overall length. The 4-flute, 30-degree spiral helix geometry supports efficient chip evacuation and surface finish quality. Machinists and toolroom operators install this tool in CNC machining centers and manual mills for slotting, profiling, and peripheral milling operations.

This end mill is suited for use in both production and job-shop environments where a long-reach, small-diameter tool is required. The centercutting design allows plunge entry in addition to peripheral and slot cuts. The right-hand cut, right-hand flute configuration is standard for conventional spindle rotation. The 5/16 inch shank diameter matches the cutting diameter, making it compatible with standard ER collet chucks and end mill holders of that bore size.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN coating provides thermal resistance in high-speed and dry cutting conditions
• 4 flutes with 30-degree helix angle for balanced chip load and surface finish
• Centercutting geometry allows direct plunge milling
• Long length of cut (1-1/8 inches) suits deep slot and profile work
• Right-hand cut, right-hand flute configuration for standard CNC and manual mill spindles

Compatibility

Designed as a standard shank solid carbide square end mill for use in ER collet systems, end mill holders, and shrink-fit toolholders accepting a 5/16 inch bore. Suitable for slotting, profiling, and contouring operations on ferrous and non-ferrous workpiece materials.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Secure the shank fully within the holder to the recommended engagement depth before tightening to prevent pullout under cutting load. Verify spindle speed and feed rate against the material being cut before engaging the tool. Inspect the cutting edges for chipping or wear before each use and replace if edge integrity is compromised.