Accupro 12179297 Ball End Mill 3/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12179297 is a single-end ball end mill designed for precision milling of contoured surfaces, 3D profiles, and radius-bottom slots. Built from micrograin solid carbide, it offers superior hardness and wear resistance compared to high-speed steel tooling. The cutting end measures 3/16 inches in diameter with a 1 inch length of cut, and the tool runs a 40-degree right-hand helix that promotes efficient chip evacuation. An nACRo coating provides added thermal and oxidation resistance, extending tool life in harder workpiece materials. This tool is suited for machining centers and CNC mills running at elevated speeds and feeds.

This ball end mill is intended for use in metalworking applications where a full-radius cutting profile is required, such as die and mold work, contouring, and finishing passes on hardened or difficult-to-machine alloys. The 40-degree helix and nACRo coating make it particularly effective when milling stainless steels, tool steels, and other abrasion-resistant materials. With a 3/16 inches shank diameter and 4 inches overall length, it seats directly into standard collet chucks or end mill holders on vertical and horizontal milling machines.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• nACRo coating for oxidation and thermal resistance in high-speed cuts
• 40-degree right-hand helix for improved chip flow and reduced cutting forces
• 4-flute geometry for a smooth finish on contoured and profiled surfaces
• Single-end ball nose profile for radius milling and 3D contouring
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and repeatability

Compatibility

Designed as a direct-mount end mill for use in standard collet chucks and end mill holders accepting a 3/16 inches shank diameter on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Secure the shank fully within the collet or holder to the recommended engagement depth before tightening — never clamp on the fluted portion. Verify spindle runout and holder cleanliness before seating the tool. Always confirm correct RPM and feed rate for the workpiece material before initiating a cut.