Accupro 12183856 Square End Mill 5/16 in 6 Flute Carbide

Product Description

The ACCUPRO 12183856 is a solid carbide square end mill designed for precision milling operations in metal fabrication and machining environments. With a 5/16-inch mill diameter, a 7/8-inch length of cut, and a 6-flute spiral configuration with a 40-degree helix angle, this tool delivers efficient chip evacuation and a fine surface finish in demanding applications. The AlTiN coating provides thermal resistance and extended tool life when cutting hardened steels, stainless alloys, and other difficult materials. Centercutting geometry allows for direct plunge entry without a pre-drilled starting hole. This end mill is used by machinists and tool-and-die professionals working on CNC mills and manual knee mills.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials. The regular-length configuration and right-hand cut with right-hand flute make it a standard fit for most CNC machining center setups. The micrograin carbide substrate offers rigidity and wear resistance in high-feed applications. The 5/16-inch shank diameter matches the mill diameter, allowing direct collet or end mill holder mounting without a reducer.

Key Features

• 6-flute spiral design with 40-degree helix angle for smooth cutting action and reduced chatter
• AlTiN coating for heat resistance and extended tool life in hardened and abrasive materials
• Centercutting capability allows direct plunge milling without pilot drilling
• Micrograin solid carbide substrate provides rigidity and dimensional stability
• Right-hand cut and right-hand flute direction for standard CNC and manual mill compatibility
• Mill diameter tolerance of +0.000 / -0.002 inches ensures close-tolerance fitment

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual vertical mills accepting a 5/16-inch collet or end mill holder. No specific OEM model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Secure the shank in a properly sized collet or end mill holder and verify runout before beginning a cut. Always power down and lock out the machine spindle before changing tooling. Follow the machine manufacturer and tooling manufacturer recommendations for speeds, feeds, and depth of cut appropriate to the workpiece material.