Accupro 12182877 Corner Radius End Mill 3/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12182877 is a solid carbide corner radius end mill designed for precision milling operations where a controlled radius at the cutting corner is required. Built from micrograin solid carbide, this single-end tool features a 3/8 inch cutting diameter, a 0.045 inch corner radius, and 4 spiral flutes with a 40-degree helix angle. The bright uncoated finish makes it well suited for non-ferrous materials and general-purpose milling where coatings are not required. It is a centercutting design, allowing plunge entry directly into the workpiece. Machinists and tool-and-die professionals install and operate this end mill in CNC machining centers and manual mills.

This end mill is suited for finish milling, profiling, slotting, and contouring operations in ferrous and non-ferrous materials. The stub length classification and 5/8 inch length of cut make it particularly effective in applications requiring rigidity and minimal tool deflection. The right-hand flute direction and right-hand cutting orientation are standard for the majority of vertical and horizontal milling setups found in job shop and production machining environments.

Key Features

• Micrograin solid carbide construction for wear resistance and edge retention
• 0.045 inch corner radius reduces stress concentration and extends workpiece edge life
• 40-degree helix angle promotes smooth chip evacuation and surface finish quality
• Centercutting design allows direct plunge milling without a pre-drilled entry point
• Stub length classification provides added rigidity to minimize deflection in tight setups
• Bright uncoated finish suitable for non-ferrous materials and general-purpose applications

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 3/8 inch collets and end mill holders used in CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool holding and runout tolerances. Ensure the spindle and collet or end mill holder are clean and free of debris before seating the 3/8 inch shank. Confirm tool stick-out is minimized to maintain rigidity consistent with the stub length classification. Always verify spindle speed and feed rate parameters against material-specific cutting data before engaging the workpiece.