Accupro 12182280 Square End Mill 5/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12182280 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Built from micrograin carbide, it delivers consistent cutting performance across a range of ferrous and non-ferrous materials. The 3-flute, spiral-flute geometry with a 40-degree helix angle promotes efficient chip evacuation and balanced cutting forces. At 5/16 inch in diameter with a 1 inch length of cut and a 4 inch overall length, this long-length end mill suits applications requiring extended reach into pockets, slots, and profiles. It is installed and operated by machinists and CNC programmers in production shop environments.

This end mill fits standard milling setups where a 5/16 inch shank is required. The long overall length of 4 inches makes it suitable for deep-pocket milling, side milling, and slot cutting where a standard-length tool cannot reach. It is uncoated, making it well suited for use with cutting fluid in applications on aluminum, brass, mild steel, and similar materials. Right-hand cut and right-hand flute configuration is standard for conventional milling machine and CNC machining center use.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• 3-flute spiral geometry with 40-degree helix for efficient chip evacuation
• Centercutting design allows plunge entry directly into workpiece
• Long-length configuration with 4 inch OAL for extended reach applications
• Right-hand cut, right-hand flute for standard spindle direction
• Uncoated finish compatible with flooded coolant and most cutting fluids

Compatibility

Designed as an OEM-style replacement or direct-fit solid carbide end mill for use in standard milling machine collets, CNC machining centers, and tool holders accepting a 5/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before tool changes. Seat the shank fully into the collet or tool holder to the recommended grip depth and torque the retention hardware per the tool holder manufacturer specifications. Verify runout with a dial indicator before beginning the cut, as excessive runout will accelerate edge wear on carbide tooling.