Hertel 750903 Solid Carbide Square End Mill 1/4 Inch

Product Description

The HERTEL 750903 is a solid carbide square end mill designed for precision milling operations in metal, composites, and similar materials. With a 1/4 inch cutting diameter, 3/4 inch length of cut, and a 1/4 inch shank diameter, this single-end tool delivers accurate flat-bottom profiling and slotting. The 2-flute geometry with a 30-degree helix angle promotes efficient chip evacuation, and the uncoated carbide construction is suited for applications where coating is not required or where regrinding is anticipated. Overall length is 2.5 inches, keeping the tool compact and rigid in the spindle.

This end mill is appropriate for use in CNC machining centers, knee mills, and manual milling machines handling light to moderate material removal. The centercutting design allows plunge entry directly into a workpiece face without a pre-drilled hole, making it versatile for pocketing and contouring operations. Right-hand cut configuration is standard for conventional right-hand spindle machines commonly found in job shops, tool rooms, and production environments. Machinists, CNC operators, and tool room technicians are the primary users of this type of cutting tool.

Key Features

• Solid carbide construction for rigidity and wear resistance compared to high-speed steel alternatives
• 2-flute design promotes chip clearance in slotting and full-width cuts
• 30-degree helix angle supports smooth cutting action and reduced chatter
• Centercutting geometry enables direct plunge entry into workpiece material
• Right-hand cut for use with standard right-hand spindle machines
• Uncoated finish suitable for applications requiring regrinding or where specific coatings are not required

Compatibility

Designed as a standard 1/4 inch shank square end mill compatible with collets, end mill holders, and shrink-fit toolholders accepting a 1/4 inch shank diameter on right-hand spindle milling machines.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and the machine locked out per applicable shop safety procedures. Secure the 1/4 inch shank in a properly sized collet or end mill holder, ensuring adequate shank engagement depth to prevent tool pullout under cutting loads. Inspect the cutting edges and shank for chips or damage before mounting. Carbide tooling is brittle and should not be subjected to impact or dropped onto hard surfaces.