Accupro 12182416 Corner Radius End Mill 3/16 in 4 Flute

Product Description

The ACCUPRO 12182416 is a single-end corner radius end mill designed for precision milling in metals and engineered materials. Built from micrograin solid carbide, it runs a 3/16-inch diameter with a 0.030-inch corner radius and a 5/8-inch length of cut. The 4-flute, right-hand spiral geometry and 40-degree helix angle promote efficient chip evacuation while maintaining a smooth surface finish. The bright, uncoated finish suits applications where coating interaction with the workpiece material is a concern. Machinists and tool-and-die professionals specify this tool when tight corner tolerances and dimensional consistency are required on CNC milling centers.

This end mill is suited for light to moderate material removal in ferrous and non-ferrous metals, plastics, and composites. The centercutting design allows plunge entry, making it practical for pocketing and contouring operations. Its compact 3/16-inch diameter makes it a go-to choice for fine-feature machining where larger tools cannot reach. At 2 inches overall length, it fits standard collet and end mill holder setups used in vertical and horizontal machining centers.

Key Features

• Micrograin solid carbide construction for extended tool life and edge retention
• 0.030-inch corner radius reduces stress concentrations at pocket corners and extends part life
• 40-degree helix angle promotes smooth cutting action and improved chip flow
• Centercutting design allows direct plunge entry for pocketing operations
• Right-hand cut, right-hand flute spiral for standard CNC spindle compatibility
• Bright, uncoated finish suitable for a broad range of workpiece materials

Compatibility

Designed as a direct-fit replacement for standard 3/16-inch shank end mill holders and collets used in CNC vertical machining centers, manual knee mills, and similar milling equipment.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or end mill holder to the recommended engagement depth before torquing the retention hardware. Verify runout with a dial indicator after installation and before initiating a cutting program.