Accupro 12178996 Square End Mill 1/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12178996 is a solid carbide square end mill designed for precision milling operations in metal and composite materials. With a 0.125-inch cutting diameter, 4-flute spiral geometry, and a 40-degree helix angle, this tool delivers efficient chip evacuation and smooth surface finishes in ferrous and non-ferrous applications. The nACRo coating provides enhanced wear resistance and lubricity, extending tool life in demanding cutting environments. Stub-length construction keeps the tool rigid, minimizing deflection during aggressive passes. This end mill is centercutting, allowing plunge entry as well as conventional peripheral and slot milling.

This end mill is suited for light-to-medium material removal in CNC machining centers and manual mills. The stub-length format makes it appropriate for high-rigidity applications where reach is not a limiting factor. With a 0.125-inch shank diameter matching the cutting diameter, it fits standard collet chucks and end mill holders used in precision shops, tool rooms, and production environments. Right-hand cut and right-hand flute orientation follow conventional setup standards.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• nACRo coating improves wear resistance and reduces friction during cutting
• 40-degree helix angle promotes efficient chip flow and reduces heat buildup
• Centercutting design allows direct plunge entry into workpiece
• Stub-length OAL of 1.5 inches maximizes rigidity and minimizes deflection
• Right-hand cut and right-hand flute for standard CNC and manual mill setups

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual milling machines accepting 0.125-inch shank end mills via ER collets or end mill holders.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully within the collet or holder to the recommended gauge length and torque the retention mechanism per the toolholder manufacturer specifications. Verify runout with a dial indicator after seating to confirm acceptable tool concentricity before beginning a cut.