Accupro 12183082 Corner Radius End Mill 1/2 in 4 Flute Carbide

Product Description

The ACCUPRO 12183082 is a solid carbide corner radius end mill designed for precision milling in metal cutting and machining applications. Built from micrograin solid carbide, it delivers a 1/2 inch cutting diameter with a 0.02 inch corner radius that reduces stress concentrations at part corners and extends tool life compared to sharp-corner alternatives. The 4-flute, right-hand spiral geometry at a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. With a 2 inch length of cut and 4 inch overall length, this is a long-series tool suited for deeper reach operations. It ships bright and uncoated, making it a straightforward choice for general-purpose machining where coating is not required.

This end mill is used in CNC machining centers and manual milling operations where corner radii are required on workpiece features such as pockets, slots, and profile paths. The centercutting design allows plunge entry into the workpiece. Right-hand cutting direction suits standard spindle rotation. The long flute length accommodates deeper cuts in a single pass, reducing the need for repositioning in moderate-depth cavities. It is typically installed and operated by machinists and CNC programmers working in job shops, production facilities, and toolrooms.

Key Features

• 0.02 inch corner radius reduces stress risers and improves part quality at floor-to-wall transitions
• Micrograin solid carbide construction for rigidity and wear resistance
• 4-flute, 40-degree helix spiral geometry for efficient chip removal and surface finish
• Centercutting capable — allows direct plunge entry without pre-drilling
• Long-series length of cut at 2 inches provides extended reach in deeper features
• Bright/uncoated finish suitable for general-purpose ferrous and non-ferrous machining

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 1/2 inch tool holders and collet chucks used in CNC machining centers and manual knee mills.

Installation Notes

Install into a 1/2 inch collet, end mill holder, or hydraulic chuck using the appropriate toolholder torque procedure per the machine tool manufacturer specifications. Ensure the machine spindle is fully stopped and the control is in a safe state before tool changes. Verify runout with a dial indicator after seating to confirm concentricity before cutting. Follow your facility safety program and applicable OSHA machine guarding requirements when operating milling equipment.