Accupro 12181616 Square End Mill 0.1969 in 2 Flute Carbide

Product Description

The ACCUPRO 12181616 is a solid carbide square end mill designed for precision milling operations in ferrous and hardened materials. Built from micrograin carbide stock, this stub-length tool measures 0.1969 inches (5.00 mm) in diameter with a 0.3937-inch (10.00 mm) length of cut. The AlTiN finish improves heat resistance and extends tool life in dry or high-speed cutting conditions. Two spiral flutes at a 40-degree helix angle promote efficient chip evacuation and smooth cutting action. The centercutting geometry allows plunge entry, giving machinists flexibility in toolpath programming without a pre-drilled start hole.

This end mill is suited for CNC machining centers, vertical mills, and manual knee mills running high-speed or conventional milling passes. The stub-length configuration adds rigidity, making it a strong choice for slotting, profiling, and pocketing in harder workpiece materials where deflection control is critical. The right-hand cut and right-hand flute orientation are standard for the majority of machining setups. Typical users include tool-and-die machinists, production CNC operators, and precision job shop technicians.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for elevated heat resistance in dry and high-speed cutting
• 40-degree helix angle with spiral flutes for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece
• Stub-length body reduces deflection in demanding milling applications
• Right-hand cut and right-hand flute for standard machine spindle compatibility

Compatibility

Designed as an OEM-style solid carbide end mill for use in standard milling chucks, collet holders, and shrink-fit toolholders accepting a 6.00 mm (approximately 0.2362 inch) shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before loading or removing the tool. Use a calibrated torque wrench on collet nuts and verify runout with a dial indicator after seating the shank. Inspect the cutting edges for chips or wear before each use, as micrograin carbide is brittle and sensitive to improper handling.