Accupro 12182755 Corner Radius End Mill 3/16 in 4 Flute

Product Description

The ACCUPRO 12182755 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 3/16 inch diameter with a matching 3/16 inch shank, a 3/8 inch length of cut, and a 0.01 inch corner radius that reduces stress concentration at the bottom of a slot or pocket while improving surface finish. The micrograin solid carbide construction provides hardness and wear resistance suited to ferrous and non-ferrous materials. A 40-degree helix and four right-hand spiral flutes promote efficient chip evacuation. This is a single-end, centercutting tool, meaning it can plunge directly into material. It is installed and operated by machinists, tool-and-die workers, and CNC programmers.

This end mill is suited for stub-length milling applications where rigidity and minimal deflection are priorities. Its compact 2 inch overall length and stub classification make it appropriate for tight-clearance setups on vertical machining centers, CNC mills, and manual knee mills. The bright uncoated finish makes it a practical choice for general-purpose milling of aluminum, brass, plastics, and softer steels where a coating is not required. The corner radius geometry is particularly useful when milling pockets or profiles that require a small, controlled radius at internal corners.

Key Features

• Solid micrograin carbide construction for wear resistance and cutting edge integrity
• 0.01 inch corner radius reduces stress concentration and improves pocket floor finish
• Four right-hand spiral flutes with 40-degree helix for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece material
• Stub-length classification at 2 inches OAL maximizes rigidity and minimizes deflection
• Bright uncoated finish suitable for general-purpose non-ferrous and softer ferrous materials

Compatibility

Designed as an OEM-style replacement or standard tooling option for 3/16 inch collet or end mill holder setups on vertical machining centers, CNC mills, and manual milling machines accepting right-hand cutting tools.

Installation Notes

Installation requires a compatible 3/16 inch collet, end mill holder, or shrink-fit holder. Ensure the spindle is fully powered down and locked before tool changes. Verify runout with a dial indicator after installation, as shank diameter tolerance is -0.0001 to -0.0004 inches and excessive runout will accelerate wear. Follow the machine manufacturer and tooling supplier feed and speed recommendations for the specific workpiece material.