Hertel E5250012 Ball End Mill 0.1875 in 4 Flute Carbide

Product Description

The HERTEL E5250012 is a solid carbide ball end mill designed for precision milling operations in metal, composites, and engineering-grade plastics. With a 0.1875-inch cutting diameter, a 0.625-inch length of cut, and a 2-inch overall length, this tool is built for contour milling, profiling, and finishing passes where a spherical cutting profile is required. The 4-flute geometry provides rigidity and improved chip evacuation compared to 2-flute designs, making it suitable for higher feed rates in stable setups. The uncoated solid carbide construction delivers consistent edge sharpness and is compatible with a wide range of cutting fluids and dry machining strategies.

This end mill is used in CNC machining centers and manual mills for finishing 3D contours, radii, and pocket floors in ferrous and non-ferrous materials. The 0.1875-inch shank diameter matches the cutting diameter, allowing direct collet clamping in standard ER or end mill holders without reduction sleeves. The right-hand cut and right-hand flute direction suit conventional and climb milling in typical shop setups. It is a single-end tool, meaning the cutting geometry is on one end only.

Key Features

• 0.1875-inch ball nose diameter for precise radius profiling and 3D contouring
• 4-flute design supports higher feed rates and improved surface finish versus 2-flute
• Solid carbide construction provides rigidity and wear resistance
• 30-degree helix angle balances cutting forces across flute length
• Uncoated finish compatible with most cutting fluids and dry machining
• Right-hand cut, right-hand flute, single-end configuration

Compatibility

Designed as an OEM-style solid carbide ball end mill suitable for standard collet and end mill holder systems accepting a 0.1875-inch shank diameter.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the spindle fully stopped and the machine in an e-stop or locked-out state. Seat the shank fully into the collet or holder and torque the retention nut to holder manufacturer specifications. Inspect the cutting edges and shank for chips or runout before the first pass. Verify spindle speed and feed rate against published carbide end mill cutting data for the workpiece material before engaging the cut.