Accupro 12179008 Square End Mill 5/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12179008 is a solid carbide square end mill designed for precision metal removal in milling operations. Built from micrograin carbide and coated with a nACRo finish, this stub-length tool offers improved wear resistance and thermal stability in demanding cutting environments. It features a 5/16 inch cutting diameter, a 1/2 inch length of cut, and a 40-degree helix angle with a 4-flute spiral configuration. The centercutting geometry allows for plunge entry as well as conventional peripheral milling. This end mill is installed and operated by machinists and tooling technicians working on CNC machining centers and manual knee mills.

This end mill is suited for high-speed finishing and semi-finishing passes in ferrous and non-ferrous materials where tool life and surface finish quality matter. The stub length format reduces overhang and improves rigidity, making it appropriate for shallow-to-moderate depth-of-cut applications in tight-tolerance work. The nACRo coating performs well in dry or minimal-lubrication cutting scenarios. The right-hand cut and right-hand flute orientation are standard for conventional vertical milling setups.

Key Features

• Solid micrograin carbide construction for hardness and wear resistance
• nACRo coating for extended tool life in dry and semi-dry cutting
• 40-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Centercutting design enables plunge milling entry
• Stub length format increases rigidity and reduces deflection
• 4-flute spiral configuration for efficient material removal and improved finish

Compatibility

Designed as a direct-fit replacement-style solid carbide square end mill for standard 5/16 inch collet or end mill holder tooling systems on CNC machining centers and conventional vertical mills.

Installation Notes

This end mill is installed by machinists using a compatible 5/16 inch collet, end mill holder, or set-screw adapter. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Verify shank engagement depth meets the tool holder manufacturer minimum before tightening. Inspect the collet or holder bore for chips or wear before seating the tool.