Hertel GH070028 Square End Mill 7/16 in Hss Tin

Product Description

The HERTEL GH070028 is a 2-flute square end mill designed for general-purpose milling operations in ferrous and non-ferrous metals. It is machined from M7 high speed steel and finished with a TiN (titanium nitride) coating to improve surface hardness and extend tool life. The mill diameter is 7/16 inches (0.4375 inches), the length of cut is 1 inch, and the shank diameter is 3/8 inches. With a 42-degree helix angle and right-hand spiral flutes, it delivers efficient chip evacuation and stable cutting. This end mill is installed and operated by machinists and toolroom professionals working on manual mills and CNC machining centers.

This end mill is suited for slotting, profiling, and peripheral milling in shop and production environments. Its centercutting geometry allows plunge entry directly into the workpiece without a pre-drilled pilot hole. The regular-length configuration and 2-11/16 inch overall length make it a practical choice for standard-depth features in both prototype and production work. M7 HSS construction handles interrupted cuts and moderate heat without the brittleness associated with carbide tooling, making it a reliable option for job shops running a variety of materials.

Key Features

• 2-flute design promotes chip clearance in slotting and full-width cuts
• 42-degree helix angle improves cutting action and surface finish
• TiN coating increases surface hardness and reduces built-up edge
• Centercutting geometry enables direct plunge milling
• M7 high speed steel construction tolerates interrupted cuts
• Right-hand cut and right-hand flute for standard spindle rotation

Compatibility

Designed as a standard 3/8 inch shank square end mill compatible with ER and straight-bore toolholders sized for 3/8 inch shank diameters on manual mills and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the machine spindle is fully stopped and locked out before seating or removing tooling. Secure the shank to the minimum recommended engagement depth in the toolholder to prevent pullout under load. Verify runout with an indicator after installation before beginning a cut, and confirm feed and speed parameters are appropriate for the workpiece material and M7 HSS construction.