Accupro 12179248 Ball End Mill 9/64 in 4 Flute Carbide

Product Description

The ACCUPRO 12179248 is a single-end ball end mill designed for precision milling of contoured surfaces, slots, and 3D profiles in ferrous and non-ferrous materials. It features a 9/64 inch (0.1406 inch) cutting diameter and a 3/8 inch length of cut, with a 4-flute spiral configuration and a 40-degree helix angle that promotes efficient chip evacuation and smooth surface finishes. The solid micrograin carbide construction delivers rigidity and edge retention, while the nACRo coating adds heat and wear resistance for extended tool life in demanding cutting conditions. This end mill is installed by machinists and tool-and-die professionals operating CNC mills and manual knee mills.

This ball end mill suits applications in job shops, tool rooms, and production machining environments where fine contour milling, die work, and profiling operations are required. The 3/16 inch shank diameter fits standard collets and end mill holders on both CNC machining centers and manual mills. The right-hand cutting and right-hand flute direction make it compatible with conventional milling setups. Its compact geometry is well-suited for light to medium material removal in tight-tolerance work on hardened steels, alloy steels, and similar materials where nACRo coatings provide thermal protection.

Key Features

• 9/64 inch (0.1406 inch) ball nose cutting diameter for precise contour and profile milling
• 4-flute spiral design with 40-degree helix angle for smooth chip flow and reduced cutting forces
• Solid micrograin carbide substrate for rigidity and edge retention at elevated cutting speeds
• nACRo coating provides heat resistance and extended wear life in ferrous materials
• Single-end configuration with right-hand cut and right-hand flute direction
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and finish

Compatibility

Designed for use in standard 3/16 inch collets and end mill holders on CNC machining centers and manual milling machines. Verify collet and holder runout tolerance before use to maintain dimensional accuracy within the stated mill diameter tolerance.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the machine spindle is fully powered down and at rest before inserting or removing the end mill. Seat the shank fully into the collet or end mill holder and torque the retention hardware according to the toolholder manufacturer specifications. Inspect the cutting edges for chips or damage before each use, and verify shank diameter tolerance compatibility with the collet bore.