Hertel E111001601 Ball End Mill 0.25 in 2 Flute Hss

Product Description

The HERTEL E111001601 is a single-end ball end mill designed for milling curved surfaces, contoured profiles, and three-dimensional forms in a wide range of materials. Built from high speed steel, this 2-flute tool measures 0.25 inches in diameter with a 0.625-inch length of cut and a 2-7/16-inch overall length. The 38-degree helix angle promotes efficient chip evacuation and smooth cutting action. It is uncoated and suited for general-purpose milling operations where HSS tooling is appropriate. Machinists and toolroom professionals install this end mill in standard milling machines, CNC machining centers, and manual knee mills.

This end mill is a solid choice for profiling, slotting, and finishing passes on ferrous and non-ferrous materials in both production and job-shop environments. The ball nose geometry is well suited to cavity work, die and mold contouring, and ramp milling. The 3/8-inch shank diameter fits standard collets and end mill holders used in most milling setups. Its regular length classification makes it a practical selection for everyday cutting tasks that do not require extended reach.

Key Features

• Ball nose geometry for contouring, profiling, and 3D surface milling
• High speed steel construction for general-purpose cutting applications
• 2-flute design supports chip clearance in slotting and plunge operations
• 38-degree right-hand helix for smooth chip flow and reduced chatter
• Uncoated finish suitable for use with cutting fluids or dry cutting where applicable
• Single-end configuration with right-hand cutting direction

Compatibility

Designed as a standard single-end ball end mill with a 3/8-inch shank, compatible with collet chucks and end mill holders sized for 3/8-inch shanks on manual and CNC milling machines.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's guidelines. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank firmly in a properly sized collet or end mill holder to the recommended clamping torque for the holder type in use. Inspect the cutting edges for damage before each use and replace the tool if chipping or wear is observed.