Accupro 12183543 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12183543 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 3/8 inch diameter cutting edge with a 0.015 inch corner radius and four right-hand spiral flutes, producing a smooth finish while reducing chipping at part edges. The cutting geometry is right-hand, single-end, and centercutting, allowing plunge entry into the workpiece. An AlTiN coating provides elevated heat resistance and extended tool life when cutting hardened steels, stainless alloys, and similar difficult materials. This tool is installed and operated by machinists on CNC machining centers and manual mills.

This end mill is suited for finishing and semi-finishing passes in ferrous and non-ferrous metals where edge integrity is critical. The long flute configuration with a 1 inch length of cut and 4 inch overall length makes it appropriate for applications requiring deeper axial engagement. The micrograin carbide substrate supports higher surface footage and feeds compared to standard carbide grades, making it a practical choice for production environments focused on part quality and tool longevity.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for high-temperature performance on hardened and alloyed steels
• 0.015 inch corner radius reduces stress concentration and edge chipping on finished parts
• Centercutting design allows direct plunge milling without a pre-drilled hole
• Right-hand cut, right-hand spiral, four-flute layout for efficient chip evacuation
• Long-length configuration with 1 inch LOC and 4 inch OAL for deeper reach applications

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 3/8 inch collet chucks, end mill holders, and shrink-fit toolholders used on CNC machining centers and manual vertical mills.

Installation Notes

This tool should be installed by a qualified machinist following the toolholder manufacturer torque and runout specifications. Verify collet or holder bore cleanliness before seating the shank to maintain concentricity within tolerance. Always confirm spindle direction is set to right-hand rotation before engaging the cut. Follow applicable shop safety procedures and machine guarding requirements during setup and operation.