Accupro 12181645 Square End Mill 5/16 in 2 Flute Carbide

Product Description

The ACCUPRO 12181645 is a solid carbide square end mill designed for precision milling operations in metal and composite materials. With a 5/16-inch cutting diameter and a 40-degree helix angle, it delivers aggressive chip evacuation and smooth cutting action in a compact stub-length profile. The TiCN coating increases surface hardness and reduces built-up edge, extending tool life in ferrous and non-ferrous applications. Two spiral flutes provide efficient chip clearance while maintaining rigidity in the cut. This tool is installed and operated by machinists and CNC tooling technicians on vertical machining centers, knee mills, and similar equipment.

This end mill suits general-purpose slot milling, profiling, and peripheral milling in light to medium stock removal applications. The stub length configuration — 1/2-inch length of cut against a 2-inch overall length — makes it well suited for setups requiring minimal overhang and high rigidity. The centercutting geometry allows plunge entry directly into the workpiece without a pre-drilled hole. Right-hand cut and right-hand flute orientation are standard for conventional CNC and manual milling setups.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance
• TiCN coating reduces friction and extends tool life on ferrous materials
• 40-degree helix angle promotes efficient chip evacuation in spiral flute design
• Centercutting geometry allows direct plunge entry into the workpiece
• Stub length profile minimizes deflection in tight-reach applications
• Right-hand cut, right-hand flute orientation for standard spindle compatibility

Compatibility

Designed as a standard shank square end mill for use in collet chucks, end mill holders, and shrink-fit toolholders accepting a 5/16-inch shank diameter on vertical machining centers and manual knee mills.

Installation Notes

Installation should be performed by qualified machinists following established toolholding torque procedures for the specific holder in use. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Verify shank seating depth and runout with a dial indicator before beginning a cut. Follow applicable shop safety standards and machine manufacturer guidelines for maximum RPM and feed rates.