Hertel 750340 Square End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The HERTEL 750340 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 3/8 inch cutting diameter, a 1-1/8 inch length of cut, and a 3 inch overall length with a matching 3/8 inch shank diameter. The four-flute, right-hand spiral design runs at a 30-degree helix angle with a TiCN (titanium carbonitride) coating for improved wear resistance and surface finish. Micrograin carbide construction provides edge stability under high-speed cutting conditions. This is a center-cutting tool, allowing direct plunging into workpiece material where required.

This end mill is suited for peripheral and slot milling in ferrous and non-ferrous metals, alloy steels, and similar materials. The long series length of cut range of 1.0 to 1.25 inches makes it appropriate for applications requiring deeper axial engagement than a standard-length tool allows. It is typically run in CNC machining centers, vertical mills, and manual knee mills by machinists and toolroom technicians. The right-hand cut and right-hand flute configuration is the standard orientation for conventional and climb milling operations.

Key Features

• Solid micrograin carbide construction for edge rigidity and thermal resistance
• TiCN coating reduces friction and extends tool life in abrasive materials
• 30-degree helix angle improves chip evacuation and surface finish
• Center-cutting capability allows direct plunge entry into workpiece
• Four flutes provide a balance of chip clearance and cutting edge count
• Long series classification with 1-1/8 inch length of cut for deeper reach

Compatibility

Designed as a standard 3/8 inch shank square end mill compatible with any ER, set-screw, shrink-fit, or hydraulic toolholder accepting a 3/8 inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing tooling. Seat the shank to the full recommended insertion depth in the toolholder to prevent pullout under cutting loads. Verify runout with a dial indicator after clamping, and confirm speeds and feeds are appropriate for the workpiece material before engaging the cut.