Accupro 12179244 Ball End Mill 0.875 in 4 Flute Carbide

Product Description

The ACCUPRO 12179244 is a single-end ball end mill designed for 3D contouring, profiling, and finishing operations in metal-cutting applications. Built from micrograin solid carbide, it delivers the rigidity and edge retention needed for hardened steels, stainless alloys, and high-temp materials. The 0.875 inch cutting diameter pairs with a 1.75 inch length of cut and a 40-degree helix angle, optimizing chip evacuation and reducing cutting forces. An nACRo coating provides thermal resistance and surface hardness, extending tool life in high-speed dry or near-dry machining environments. This is a professional-grade tooling item installed by machinists and CNC operators in job shop and production environments.

The 12179244 is suited for vertical machining centers and CNC milling machines running ferrous and non-ferrous workpiece materials where a full-radius ball nose profile is required. The right-hand cutting and right-hand spiral flute geometry makes it compatible with standard spindle rotation. With a 4.0 inch overall length and a 0.875 inch shank diameter, it fits standard ER and side-lock toolholders used in most production setups. No extended reach is provided, making this best suited for applications where projection length is not a constraint.

Key Features

• Micrograin solid carbide substrate for superior hardness and wear resistance
• nACRo coating provides high thermal stability and reduced friction at the cutting edge
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• 4-flute spiral design balances material removal rate with surface finish quality
• Right-hand cut and right-hand flute geometry for standard CNC spindle compatibility
• Mill diameter tolerance of +0.000 to -0.002 inches ensures consistent fitment and repeatable results

Compatibility

Designed as an OEM-style solid carbide ball end mill for use in standard CNC milling applications requiring a 0.875 inch diameter ball nose tool with a 0.875 inch shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before loading or unloading the tool. Seat the shank fully in the toolholder to the minimum recommended engagement depth per the toolholder manufacturer guidelines. Verify runout with a dial indicator before beginning a production cut.