Accupro 12182896 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12182896 is a solid carbide corner radius end mill designed for precision milling in ferrous and hard materials. It features a 3/8 inch diameter, a 0.06 inch corner radius, and an AlTiN coating that improves heat resistance and tool life in high-speed and dry cutting applications. With 4 spiral flutes and a right-hand cutting direction, this end mill delivers smooth chip evacuation and consistent surface finish. The stub length geometry provides rigidity, reducing deflection during aggressive cuts. It is centercutting, which allows plunge entry without a pre-drilled pilot hole. Machinists and tool-and-die professionals working on CNC machining centers will find this tool suited to finishing and semi-finishing passes on hardened workpieces.

This end mill is built for single-end use in CNC milling applications where corner radii are required to reduce stress concentrations and improve part strength. The stub flute length of 5/8 inch and an overall length of 2 inches make it a compact, rigid choice for shallow-to-medium depth pockets, slots, and profiling operations. It is well suited for shops working with alloy steels, stainless steels, titanium, and other difficult-to-machine materials where AlTiN coating provides a thermal barrier at the cutting edge.

Key Features

• Solid micrograin carbide substrate for wear resistance and edge retention in hard materials
• AlTiN coating provides high-temperature oxidation resistance for dry and high-speed cutting
• 0.06 inch corner radius reduces stress risers and improves part geometry at pocket floors and walls
• 4 right-hand spiral flutes with centercutting capability for plunge entry
• Stub length design maximizes rigidity and minimizes deflection
• Corner radius tolerance of plus or minus 0.0015 inches for consistent dimensional accuracy

Compatibility

Designed as an OEM-style 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 should be performed by a qualified machinist or CNC tooling technician. Secure the shank in a properly sized collet or end mill holder, ensuring the shank is fully seated and clamped to the holder manufacturer's specified torque. Confirm spindle runout is within acceptable limits before beginning a cut, as excessive runout accelerates edge wear and reduces corner radius accuracy. Never exceed the tool's rated cutting parameters for the workpiece material.