Hertel 750412 Square End Mill 0.25in 4 Flute Solid Carbide

Product Description

The HERTEL 750412 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineered materials. With a 0.25 inch cutting diameter, a 1.25 inch length of cut, and a 2.5 inch overall length, this tool is suited for slotting, profiling, and peripheral milling in tight geometries. The four-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. Micrograin carbide construction delivers hardness and edge retention at higher cutting speeds and feeds. The uncoated finish makes it straightforward to inspect for wear. This end mill is installed and operated by machinists and CNC tool setters in job shop, production, and maintenance environments.

This end mill is appropriate for general-purpose milling in ferrous and non-ferrous materials across vertical machining centers, manual knee mills, and CNC routers. The centercutting geometry allows plunge entry directly into the workpiece, expanding its use to ramping and helical interpolation applications. The regular length classification keeps it rigid in setups where stickout must be minimized. The right-hand cut and right-hand flute configuration is standard for conventional spindle direction on most machining equipment.

Key Features

• Solid micrograin carbide construction for hardness and edge retention at elevated cutting speeds
• Four-flute spiral design with 30-degree helix angle for efficient chip evacuation and surface finish quality
• Centercutting geometry enables direct plunge entry, ramping, and helical milling
• Uncoated finish allows straightforward visual wear inspection
• Right-hand cut and right-hand flute — compatible with standard spindle direction on most CNC and manual mills
• Regular length classification promotes rigidity and minimizes deflection in standard-depth setups

Compatibility

Designed as an OEM-style replacement or direct-use tooling option for 0.25 inch collet or end mill holder systems on vertical machining centers, CNC mills, and manual milling machines requiring a four-flute square end mill with a 0.25 inch shank.

Installation Notes

Installation is performed by a machinist or CNC setup technician. The tool should be seated fully into an end mill holder or collet chuck and secured to the torque specification of the toolholder manufacturer before spindle operation. Inspect the shank and collet bore for chips or debris before seating. Confirm spindle direction is set to right-hand rotation before engaging the cut.