Hertel E5251016 Ball End Mill 0.25 in 2 Flute Solid Carbide

Product Description

The HERTEL E5251016 is a solid carbide ball end mill designed for precision milling operations in metalworking and machining applications. With a 0.25-inch mill diameter and 0.5-inch length of cut, this double-end tool delivers consistent performance in profiling, contouring, and slot milling. The 2-flute geometry supports efficient chip evacuation, making it well-suited for cutting ferrous and non-ferrous materials. Right-hand cutting and right-hand flute direction are standard on this mill. Solid carbide construction provides rigidity and wear resistance compared to high-speed steel alternatives, maintaining dimensional accuracy through demanding cutting cycles.

This ball end mill is used in CNC machining centers and manual milling machines across job shops, tool rooms, and production environments. The double-end configuration delivers two usable cutting ends, extending tool life and reducing tooling cost per operation. With a 0.25-inch shank diameter and 2.5-inch overall length, it fits standard collets and tool holders common in light to medium milling setups. Typical applications include 3D contouring, radius profiling, and finishing passes on mold components, dies, and precision mechanical parts.

Key Features

• Solid carbide construction for rigidity and extended tool life in demanding milling operations
• 2-flute design promotes effective chip clearance during slotting and profiling
• Double-end configuration provides two cutting ends per tool
• Right-hand cut and right-hand flute direction for standard CNC and manual mill compatibility
• 0.5-inch length of cut with 2.5-inch overall length for reach in moderate-depth applications
• Fixed helix and index geometry for predictable, repeatable cutting performance

Compatibility

Designed as a standard 0.25-inch shank ball end mill compatible with collet systems and tool holders sized for 1/4-inch shanks on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the collet or tool holder. Verify collet size matches the 0.25-inch shank diameter and torque the collet nut according to the tool holder manufacturer specifications. Confirm cutting direction settings on the machine match the right-hand configuration of this end mill before beginning any cutting operation.