Accupro 12180730 Square End Mill 3/8 in 5 Flute Carbide

Product Description

The ACCUPRO 12180730 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 3/8 inch cutting diameter, a 5/8 inch length of cut, and a 2 inch overall length, with a matching 3/8 inch straight shank. The five-flute spiral geometry with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. An AlTiN (Aluminum Titanium Nitride) coating enhances heat resistance and tool life when cutting ferrous and hard materials. The micrograin carbide substrate supports higher cutting speeds and feeds compared to standard carbide grades. This end mill is used by machinists and CNC operators across production and job-shop environments.

This end mill is suited for side milling, slotting, and profiling operations on steel, stainless steel, cast iron, and similar materials. The centercutting design allows plunge entry into the workpiece, adding flexibility to the machining setup. Variable index flute spacing reduces chatter and harmonic vibration during aggressive cuts. Typical applications include finish profiling, contour milling, and precision pocketing where tight tolerances and surface quality are required. The right-hand cut and right-hand flute configuration is standard for conventional CNC machining center spindles.

Key Features

• Five-flute spiral design with 40-degree helix for efficient chip removal and surface finish quality
• AlTiN coating for extended tool life in ferrous and hard-material applications
• Centercutting geometry allows direct plunge entry without pre-drilled pilot holes
• Variable index flute spacing reduces vibration and chatter during high-feed cuts
• Micrograin solid carbide substrate supports higher cutting speeds versus standard carbide
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and dimensional accuracy

Compatibility

Designed as a standard shank square end mill compatible with 3/8 inch collets and toolholders used on CNC machining centers, knee mills, and similar right-hand spindle equipment.

Installation Notes

This end mill is installed and serviced by machinists or CNC setup technicians. Always power down and lock out the machine spindle before changing tooling. Ensure the shank is fully seated and properly torqued in a clean, undamaged collet or toolholder to the machine and toolholder manufacturer specifications. Inspect the cutting edges and coating condition before each use; do not run a chipped or worn end mill at full parameters.