Accupro 12182884 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12182884 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 3/8 inch diameter with a 0.02 inch corner radius that reduces stress concentrations at the cutting edge and extends tool life in interrupted or contour cuts. The 4-flute geometry and 40-degree helix angle promote efficient chip evacuation and smooth surface finishes. A TiCN coating adds hardness and lubricity, making this tool well suited for ferrous and non-ferrous materials. This is a single-end, centercutting tool, meaning it can be plunged directly into workpiece material as well as used for peripheral and slot milling.

This end mill is used in CNC machining centers and manual mills for die and mold work, contour milling, and profiling operations where a radiused corner is required to reduce stress risers or match a specific part geometry. Its stub-length classification keeps deflection low, which is important in high-feed or tight-tolerance applications. Machinists and tool and die makers working in job shops, production facilities, and maintenance departments will find this tool appropriate for general-purpose milling of steel, stainless, and similar materials.

Key Features

• 0.02 inch corner radius reduces edge chipping and workpiece stress concentrations
• TiCN coating increases surface hardness and reduces tool wear in ferrous materials
• 40-degree helix angle promotes chip evacuation and reduces cutting forces
• Micrograin solid carbide substrate provides rigidity and edge retention
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand flute direction and right-hand cutting for standard spindle rotation

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 3/8 inch shank diameter collet or end mill holder.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per applicable shop safety procedures. Seat the 3/8 inch shank fully and evenly into a collet or end mill holder, torquing the retention hardware to the holder manufacturer's specification. Verify runout with a dial indicator before initiating a cut. Confirm spindle direction is set to right-hand rotation before engaging the workpiece.