Accupro 12182311 Square End Mill 7/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12182311 is a solid carbide square end mill built for precision milling in ferrous and non-ferrous materials. It features a 7/16-inch cutting diameter with a 1-1/2-inch length of cut and a 6-inch overall length, classifying it as an extra-long reach tool. The three-flute spiral geometry with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. A TiCN (titanium carbonitride) coating increases surface hardness and wear resistance compared to uncoated carbide. The micrograin carbide substrate supports tight tolerances and longer tool life in demanding cutting conditions. This end mill is used by machinists and tool-and-die professionals in CNC milling operations.

This end mill suits applications requiring extended reach into deep pockets, slots, or stepped features where standard-length tools cannot access. The centercutting design allows plunge entry directly into the workpiece. Right-hand cut and right-hand flute orientation are standard for conventional CNC vertical and horizontal milling setups. The extra-long 6-inch overall length makes it appropriate for mold work, deep-cavity machining, and fixture work where clearance is limited. It ships individually and is sold as a single unit.

Key Features

• 7/16-inch cutting diameter with mill diameter tolerance of +0.000 / -0.002 inches
• Solid micrograin carbide construction for dimensional stability and edge retention
• TiCN coating provides enhanced wear resistance and reduced friction at the cutting edge
• 40-degree helix angle with 3 spiral flutes for efficient chip flow
• Centercutting geometry allows direct plunge milling without a pre-drilled hole
• Extra-long 6-inch OAL with 1-1/2-inch length of cut for deep-reach applications
• Right-hand cut, right-hand flute — compatible with standard CNC spindle rotation

Compatibility

Designed as a direct-mount tool for CNC machining centers and manual mills using standard 7/16-inch collets or end mill holders. No specific model compatibility was provided by the manufacturer for this part number.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Secure the shank fully within the collet or tool holder to the recommended engagement depth before tightening — never grip on the fluted portion. Verify spindle speed and feed rate are set appropriately for the workpiece material and tool diameter before engaging the cut. Inspect the cutting edges for chipping or wear before each use; damaged carbide tooling should be removed from service immediately.