Accupro 12177187 Ball End Mill 0.25 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 12177187 is a solid carbide ball end mill designed for precision milling of contoured surfaces, 3D profiles, and complex geometries in ferrous and non-ferrous materials. Built from micrograin carbide, this single-end tool delivers consistent cutting performance in CNC machining centers and manual mills. The 0.25-inch diameter ball nose geometry produces accurate radii in finishing and semi-finishing passes. A 40-degree right-hand helix promotes efficient chip evacuation and reduces cutting forces. The uncoated micrograin carbide substrate suits a range of materials where coated tools are not required or where regrinding is preferred.

This end mill fits residential and industrial machine shop applications, tool-and-die work, mold making, and general CNC profiling operations. The extended reach configuration, with a 2.5-inch reach length and 0.5-inch length of cut, allows access to deep pockets and recessed features without repositioning the workpiece. It is suited for setups where a standard-length tool would contact a shoulder or fixture. Machinists and CNC programmers working in job shops, aerospace, and precision manufacturing will find this tool applicable to both roughing and finishing strategies on complex part geometry.

Key Features

• 0.25-inch ball nose diameter for precise radius generation on contoured surfaces
• Micrograin solid carbide construction for rigidity and wear resistance
• 40-degree right-hand spiral helix for efficient chip evacuation
• Extended reach design with 2.5-inch reach length for deep-pocket access
• Uncoated finish suitable for regrinding and use in materials not requiring a coating
• Single-end configuration with right-hand cutting direction

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC machining centers and manual mills accepting a 0.25-inch shank diameter collet or end mill holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool changer or quill is locked before inserting or removing the tool. Seat the 0.25-inch shank fully into the collet or holder to the recommended gauge-line depth and torque the retention nut per the toolholder manufacturer specifications. Verify runout with a dial indicator before initiating the cutting program, as excessive runout accelerates tool wear and reduces surface finish quality.