Accupro 12178988 Square End Mill 0.5 in 4 Flute Carbide

Product Description

The ACCUPRO 12178988 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. Built from micrograin carbide stock, it features a 40-degree helix angle with a spiral flute geometry and an nACRo finish coating that improves wear resistance and heat dissipation during aggressive cuts. The 0.5 inch cutting diameter and 4-flute configuration suit finishing and semi-finishing passes where surface finish and dimensional accuracy matter. This is a centercutting tool, allowing direct plunge entry into the workpiece. It is installed and operated by machinists on CNC machining centers and manual mills in job shops, production facilities, and toolrooms.

This end mill is suited for milling operations in steel, stainless steel, cast iron, and high-temp alloys where an nACRo-coated micrograin carbide tool is appropriate. The right-hand cut and right-hand flute orientation are standard for conventional and climb milling on vertical and horizontal spindle machines. The regular-length geometry makes it a practical choice for general-purpose slotting, profiling, and pocket milling where extended reach is not required.

Key Features

• nACRo coating for improved wear resistance and thermal performance during high-speed cutting
• 40-degree helix angle reduces cutting forces and improves chip evacuation
• Centercutting design allows direct plunge milling without a pre-drilled entry hole
• Micrograin solid carbide construction provides rigidity and edge retention
• 4-flute spiral configuration balances material removal rate with surface finish quality
• Right-hand cut and right-hand flute for standard spindle rotation on most machining centers

Compatibility

Designed as a standard 0.5 inch shank end mill compatible with ER, straight-bore, and shrink-fit tool holders sized for 0.5 inch shank diameters on CNC and manual milling machines.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Verify runout with a dial indicator after clamping to confirm the tool is within acceptable tolerance for the application. Follow the machine manufacturer and tooling supplier recommendations for speeds, feeds, and depth of cut based on workpiece material and setup rigidity.