Accupro 12181799 Square End Mill 1/2 in 2 Flute Carbide Altin

Product Description

The ACCUPRO 12181799 is a solid carbide square end mill designed for precision milling in metal cutting applications. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it delivers heat resistance and edge retention in ferrous and hardened materials. The extra-long configuration features a 0.5-inch mill diameter, a 1.5-inch length of cut, and a 3.5-inch overall length, giving machinists extended reach in deep-pocket and cavity work. Two spiral flutes with a 40-degree helix angle promote efficient chip evacuation and smooth cutting action. Installation is handled by machinists and CNC operators in job shop and production environments.

This end mill is suited for vertical and horizontal milling centers running ferrous metals, stainless, and high-temp alloys where an AlTiN coating provides thermal protection without coolant in some applications. The extra-long body makes it practical for deep-pocket profiling, slotting, and contouring where standard-length tools cannot reach. The 0.5-inch shank seats directly in ER collets, shrink-fit holders, or set-screw tool holders common to most machining centers.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN coating provides oxidation resistance at elevated cutting temperatures
• 40-degree helix angle with spiral flute geometry for efficient chip evacuation
• Centercutting design allows plunge entry into workpieces
• Right-hand cut, right-hand flute configuration for standard spindle operation
• Extra-long length of cut (1.5 inches) enables deep-pocket and cavity milling

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC machining centers and manual mills accepting a 0.5-inch shank diameter end mill in ER collet, shrink-fit, or set-screw tool holders.

Installation Notes

Installation should be performed by qualified machinists following shop tooling procedures. Power down and lock out the spindle before seating or removing the tool from any holder. Ensure the shank is fully engaged to the minimum clamping depth specified by the tool holder manufacturer before running. Verify runout with a dial indicator after installation, as excessive runout accelerates edge wear on carbide tooling.