Accupro 12181768 Square End Mill 5/8 in 2 Flute Carbide Ticn

Product Description

The ACCUPRO 12181768 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous metals, hardened steels, and alloys. It features a 5/8 inch cutting diameter, a 3 inch length of cut, and a 6 inch overall length, placing it in the extra-long category for extended reach applications. The TiCN (titanium carbonitride) coating improves surface hardness and lubricity, extending tool life in abrasive materials. The 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces. Machinists and toolmakers install this end mill in CNC machining centers and manual knee mills where deep pockets or extended reach is required.

This end mill is suited for slotting, profiling, and pocketing operations in a shop environment. The extra-long overall length of 6 inches makes it appropriate for setups that require clearance past fixtures or workpiece walls. The 2-flute configuration provides ample chip clearance, making it a good fit for deeper cuts and softer materials where chip packing is a concern. It installs with a standard 5/8 inch straight shank into collet chucks, end mill holders, or shrink-fit toolholders.

Key Features

• 5/8 inch cutting diameter with a tolerance of +0.000 / -0.002 inches for accurate sizing
• 3 inch length of cut supports deep pocket and extended reach operations
• Solid carbide micrograin substrate for rigidity and wear resistance
• TiCN coating for increased surface hardness and reduced friction in abrasive materials
• 40-degree spiral helix promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows plunge milling without a pre-drilled entry hole
• Right-hand cut, right-hand flute — compatible with standard spindle rotation

Compatibility

Designed for use in CNC machining centers and manual milling machines accepting a 5/8 inch straight shank via collet chuck, end mill holder, or shrink-fit toolholder.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the machine spindle is fully stopped and locked out before mounting or removing tooling. Confirm the holder bore and collet size match the 5/8 inch shank diameter before tightening. Check runout at the tool tip after seating to confirm proper engagement and minimize premature wear.