Accupro 12183307 Corner Radius End Mill 1/2in 4 Flute Carbide

Product Description

The ACCUPRO 12183307 is a solid carbide corner radius end mill designed for precision milling operations in metal fabrication and machining environments. The 1/2 inch cutting diameter and 0.01 inch corner radius allow for smooth floor-to-wall transitions that reduce stress concentrations in finished workpieces. With a 3 inch length of cut and 6 inch overall length, this is an extra-long configuration suited for deep-reach applications. The micrograin carbide construction delivers the rigidity and edge retention needed for ferrous and non-ferrous materials. This tool is installed by machinists and tool-and-die professionals working with CNC machining centers and manual mills.

This end mill fits applications requiring extended reach into deep pockets, slots, and cavities where standard-length tools cannot reach. The single-end, centercutting design allows both plunge and peripheral cutting. The right-hand flute direction and right-hand cutting orientation make it compatible with conventional CNC spindle configurations. It is well suited for mold and die work, aerospace component machining, and general precision part production where a small corner radius break is required rather than a sharp 90-degree edge.

Key Features

• 0.01 inch corner radius for reduced edge stress and improved surface finish at part corners
• Solid micrograin carbide construction for rigidity and long tool life
• Extra-long 6 inch overall length with 3 inch length of cut for deep-reach applications
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand spiral flutes with 40-degree helix angle for efficient chip evacuation
• Bright/uncoated finish suitable for use with cutting fluids across a range of materials

Compatibility

Designed as a direct-fit replacement or new installation in any CNC machining center or manual mill accepting a 1/2 inch shank diameter collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder torque and runout specifications. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Verify shank engagement depth meets the toolholder minimum before tightening. Use appropriate cutting fluid or coolant for the workpiece material to maintain edge life and surface finish.