Hertel E5250028 Ball End Mill 0.4375 in 4 Flute Carbide

Product Description

The HERTEL E5250028 is a solid carbide ball end mill designed for high-precision milling operations in metalworking and machining applications. With a 0.4375-inch (7/16-inch) cutting diameter and a 1-inch length of cut, this single-end tool delivers controlled material removal in contoured surfaces, slots, and profiling passes. The 4-flute geometry provides a balance of chip evacuation and surface finish quality. Manufactured from micrograin solid carbide and finished with a bright, uncoated surface, it is suited for use in rigid setups where cutting geometry and runout control are critical. Machinists and toolroom professionals will find this tool appropriate for general-purpose finishing and semi-finishing work.

This ball end mill is used in CNC machining centers and manual mills for contouring, 3D profiling, and cavity work in ferrous and non-ferrous materials. The right-hand cut and right-hand flute direction make it compatible with standard spindle configurations found in most vertical machining centers. The 7/16-inch shank diameter fits standard collet and end mill holder sizes. With a 2.75-inch overall length, this tool is compact enough for work in tighter setups while still providing adequate reach for most general milling tasks.

Key Features

• 0.4375-inch (7/16-inch) ball nose cutting diameter for precise contour and profile milling
• 1-inch length of cut supports profiling passes with controlled depth engagement
• 4-flute design balances chip removal with surface finish performance
• Micrograin solid carbide construction provides hardness and edge retention
• Bright, uncoated finish suited for applications where coating is not required or preferred
• Single-end, right-hand cut configuration for use in standard CNC and manual mill spindles

Compatibility

Designed as an OEM-style replacement or direct substitute ball end mill for use in standard 7/16-inch collets and end mill holders on CNC vertical machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following standard tooling setup procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank to the recommended insertion depth for the holder being used to minimize overhang and reduce deflection risk. Verify runout with a dial indicator before beginning cuts, particularly for finishing operations where tolerances are tight.