Accupro 12183123 Square End Mill 5/8 in 4 Flute Carbide Altin

Product Description

The ACCUPRO 12183123 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built from micrograin carbide stock and finished with an AlTiN (aluminum titanium nitride) coating, this tool handles aggressive cuts in ferrous and hardened materials while managing heat buildup at the cutting edge. It runs four spiral flutes at a 40-degree helix angle with a right-hand cut and right-hand flute direction. The 5/8-inch diameter and 2-1/8-inch length of cut put it in the mid-range category for roughing and finishing passes where extended reach is needed.

This end mill is suited for CNC machining centers and manual mills in job shops, tool rooms, and production environments. The long-series overall length of 4-5/8 inches allows access in deeper pockets and stepped features where standard-length tools fall short. The centercutting geometry supports both peripheral milling and plunge entry. Machinists working in steel, stainless, cast iron, and high-temp alloys will find the AlTiN coating and micrograin substrate well matched to those materials.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN finish improves heat resistance and tool life in ferrous materials
• 40-degree helix spiral flute promotes efficient chip evacuation
• Centercutting design allows direct plunge entry without a pre-drilled hole
• Long-series length of 4-5/8 inches total for deep-pocket access
• Right-hand cut and right-hand flute for standard spindle rotation

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual knee mills that accept a 5/8-inch shank diameter via collet, end mill holder, or shrink-fit toolholder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the spindle before seating or removing the tool from its holder. Verify runout with a dial indicator after clamping to confirm the shank is seated within tolerance. Refer to the toolholder manufacturer's torque specification for retention screws or collet nuts - do not apply values from memory.