Accupro 12184976 Roughing End Mill 3/16 in 4 Flute Altin

Product Description

The ACCUPRO 12184976 is a solid carbide roughing and finishing end mill designed for aggressive material removal with a quality surface finish in a single operation. Built from micrograin solid carbide and coated with AlTiN for heat and wear resistance, this tool runs at higher speeds and feeds than standard HSS end mills. It features a 4-flute, right-hand cut configuration with a 40-degree helix angle and an integrated chipbreaker geometry that breaks chips and reduces cutting forces. The square end profile produces flat-bottomed features and shoulders. Shank diameter is 3/16 inches with a 5/8-inch length of cut and a 2-inch overall length.

This end mill is suited for ferrous and non-ferrous machining applications in CNC milling operations. The AlTiN coating makes it particularly effective in hardened steels, stainless, and cast iron where heat generation is a concern. The chipbreaker design supports heavy roughing passes while the 4-flute geometry allows semi-finish and finish passes without a tool change, making it a practical choice for production machining, tool rooms, and job shops.

Key Features

• Micrograin solid carbide substrate for rigidity and wear resistance
• AlTiN coating extends tool life in high-temperature cutting conditions
• Chipbreaker geometry reduces cutting forces and improves chip evacuation
• 40-degree helix angle promotes smooth cutting action and surface finish
• Center-cutting capable for plunge entry
• Single-end, right-hand cut with straight shank for standard collet or end mill holder mounting

Compatibility

Designed as a direct-fit replacement for 3/16-inch diameter, 4-flute, straight-shank end mills used in standard CNC machining centers, knee mills, and manual milling machines equipped with compatible collets or end mill holders.

Installation Notes

Installation is performed by machinists using an appropriate collet, end mill holder, or set-screw adapter matched to the 3/16-inch shank diameter. Ensure the spindle is fully powered down and locked before tool changes. Torque the retention mechanism to the tool holder specification and verify runout with a dial indicator before cutting. Follow the machine manufacturer and tool manufacturer guidelines for speeds and feeds based on workpiece material.