Accupro 12179250 Ball End Mill 0.1719 in 4 Flute Carbide

Product Description

The ACCUPRO 12179250 is a solid carbide ball end mill designed for precision milling operations requiring a spherical cutting profile. With a 0.1719-inch diameter and a 4-flute configuration, it delivers efficient material removal and a fine surface finish in a compact cutting geometry. The 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces. An nACRo coating improves heat resistance and extends tool life in demanding cutting conditions. This end mill is suited for use by machinists and tool-and-die professionals working on CNC mills and machining centers.

The 12179250 is intended for finish and semi-finish milling of contoured surfaces, cavities, and three-dimensional profiles where ball-nose geometry is required. Its 0.375-inch length of cut and 2-inch overall length make it well suited for moderate-depth work in ferrous and non-ferrous materials. The micrograin carbide substrate supports use at higher spindle speeds and feeds typical of modern CNC machining operations. A 3/16-inch shank diameter fits standard collets and toolholders commonly found in production and job-shop environments.

Key Features

• 0.1719-inch ball nose diameter with a tolerance of +0.000 to -0.002 inches for precise dimensional control
• 4-flute spiral design provides improved surface finish and feed-rate capability over 2-flute alternatives
• 40-degree helix angle promotes efficient chip evacuation and reduces cutting heat buildup
• nACRo coating enhances wear resistance and thermal stability during high-speed milling
• Micrograin solid carbide substrate delivers rigidity and edge retention at elevated cutting parameters
• Single-end configuration with right-hand cut and right-hand flute direction

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide ball end mill for CNC machining centers and manual mills accepting a 3/16-inch round shank collet or toolholder.

Installation Notes

Installation should be performed by a qualified machinist familiar with CNC tooling setup procedures. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank fully into the collet or toolholder to the recommended grip length and torque the collet nut per the toolholder manufacturer specifications. Verify runout with a dial indicator before commencing a cut to protect both the tool and the workpiece.