Accupro 12181720 Square End Mill 1/4 in 2 Flute Carbide Ticn

Product Description

The ACCUPRO 12181720 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. It features a 1/4-inch cutting diameter, a 1-1/8-inch length of cut, and a 3-inch overall length. The micrograin carbide substrate paired with a TiCN (titanium carbonitride) coating provides wear resistance and extended tool life under demanding cutting conditions. The 40-degree helix spiral flute geometry promotes efficient chip evacuation and reduces cutting forces. This tool is sold as a single unit and is intended for use in CNC machining centers, vertical mills, and manual milling machines operated by machinists and tooling professionals.

This end mill is classified as a long-length style, making it suitable for applications that require deeper reach into a workpiece than a stub or standard-length tool allows. The centercutting design permits plunge milling and ramping operations without a pre-drilled pilot hole. Right-hand cut and right-hand flute orientation are standard for conventional spindle-direction setups. Typical applications include slotting, profiling, pocketing, and contouring in steel, stainless, aluminum, and similar materials where tight dimensional tolerances are required.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• TiCN coating for increased surface hardness and reduced tool wear
• 40-degree helix angle promotes smooth chip flow and reduced chatter
• Centercutting geometry allows direct plunge entry into the workpiece
• Long-length designation provides extended reach for deeper cavities
• Right-hand cut and right-hand flute for standard spindle setups

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for standard 1/4-inch collets and end mill holders used in CNC and manual milling applications.

Installation Notes

Installation is performed by machinists using a standard end mill holder or collet chuck sized for a 1/4-inch shank diameter. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the tool. Apply appropriate runout checks after installation to confirm concentricity within tolerance. Follow shop safety protocols and applicable OSHA machining standards when operating cutting tools at speed.