Accupro 12182316 Square End Mill 3/8 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 12182316 is a solid carbide square end mill designed for precision milling in metal and composite materials. With a 3/8 inch cutting diameter and a 3 inch length of cut, this tool handles deep-reach profiling, slotting, and peripheral milling where standard-length tools fall short. The 6 inch overall length places it in the extra-long category, giving machinists access to recessed features and deep pockets. Three spiral flutes with a 40-degree helix angle promote efficient chip evacuation and smooth cutting action. The micrograin carbide substrate supports edge retention in demanding applications. This tool is installed by machinists and CNC operators working in job shops, toolrooms, and production environments.

This end mill suits applications requiring extended reach in ferrous and non-ferrous materials, including steel, aluminum, and engineering plastics. The centercutting geometry allows the tool to plunge directly into workpiece material, enabling full-slot milling as well as ramping and helical interpolation. Right-hand cut and right-hand flute orientation match standard spindle rotation on vertical and horizontal machining centers. The uncoated finish makes it a direct-use option or a suitable base for shops that apply their own coatings.

Key Features

• 3 inch length of cut supports deep-pocket and extended-reach milling operations
• 40-degree helix angle promotes chip flow and reduces cutting forces
• Centercutting design allows plunge entry and helical interpolation
• Micrograin solid carbide construction provides edge retention and rigidity
• Right-hand cut and right-hand flute for standard CNC machining center compatibility
• Spiral flute geometry with no chipbreaker for consistent surface finish in finishing passes

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC machining centers and manual mills accepting a 3/8 inch straight shank.

Installation Notes

Installation is performed by machinists or CNC setup technicians. The spindle must be fully stopped and the machine placed in an e-stop or lockout state before changing tooling. Secure the 3/8 inch shank in a collet chuck or end mill holder to the manufacturer-specified clamping torque for that holder type. Inspect the shank and holder bore for chips or burrs before seating the tool, as contamination affects runout and tool life.