Accupro 12182876 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12182876 is a solid carbide corner radius end mill designed for precision milling of ferrous and non-ferrous materials in CNC and manual machining operations. It features a 3/8 inch diameter with a 0.03 inch corner radius that blends the cutting edge to reduce chipping and improve surface finish on inside corner profiles. With 4 flutes and a 40-degree helix angle, this tool delivers efficient chip evacuation and smooth cutting action. The single-end, centercutting design allows for plunge entry and side milling in a single setup. Micrograin solid carbide construction provides rigidity and edge retention across a wide range of workpiece materials.

This end mill is suited for use in job shops, toolrooms, and production machining environments where tight tolerances on corner radii are required. The stub length configuration and 3/8 inch shank diameter make it a practical choice for short-reach applications on vertical machining centers and CNC mills. The bright uncoated finish is appropriate for general-purpose cutting and aluminum applications where coatings may cause material adhesion.

Key Features

• 3/8 inch cutting diameter with 0.03 inch corner radius for controlled edge blending
• 4-flute, 40-degree right-hand helix for efficient chip removal and reduced cutting forces
• Micrograin solid carbide construction for rigidity and extended edge life
• Centercutting design allows plunge milling without a pre-drilled hole
• Bright uncoated finish suitable for general-purpose and non-ferrous machining
• Stub length type for maximum rigidity in short-reach applications

Compatibility

Designed as a general-purpose replacement or production end mill for CNC machining centers and manual mills accepting a 3/8 inch straight shank tool holder.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the tool holder collet or chuck is clean and within specified runout tolerances before seating the shank. Tighten to the toolholder manufacturer specifications and verify tool runout with a dial indicator before cutting. Always confirm spindle speed and feed rate settings are appropriate for the workpiece material and depth of cut before engaging the tool.