Accupro 12180497 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12180497 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hardened materials. With a 3/8 inch diameter and a 0.01 inch corner radius, it reduces stress concentration at the cutting edge, extending tool life and improving surface finish on profiling and finishing passes. The 4-flute geometry and right-hand spiral flute design promote efficient chip evacuation while maintaining rigidity. An AlTiN coating provides high-temperature oxidation resistance, making this end mill well suited for dry or semi-dry machining environments. Machinists and tool-and-die professionals working on CNC machining centers are the primary users of this tool.

This end mill is suited for slot milling, profiling, and finishing operations in steel, stainless steel, cast iron, and other hard alloys where a corner radius is required to strengthen the cutting edge or meet part geometry specifications. The 5/8 inch length of cut and 3/8 inch shank diameter make it appropriate for shallow-to-moderate depth applications in standard ER collet or end mill holders on vertical and horizontal machining centers. Its centercutting capability allows plunge entry directly into the workpiece when needed.

Key Features

• 0.01 inch corner radius reduces edge chipping and improves corner strength during profiling cuts
• AlTiN coating delivers high heat resistance for dry and semi-dry machining of ferrous alloys
• Micrograin solid carbide substrate provides hardness and wear resistance for demanding materials
• 4-flute, right-hand spiral design balances chip clearance with surface finish quality
• Centercutting end geometry allows direct plunge entry without a pre-drilled hole
• Variable index flute spacing reduces harmonic vibration during aggressive cuts

Compatibility

Designed as a standard single-end corner radius end mill with a 3/8 inch shank diameter, compatible with ER collet chucks and end mill holders sized for 3/8 inch shank tooling on CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked out before inserting or removing the end mill from the holder. Use a properly sized collet or set-screw holder torqued to the machine manufacturer's specification to prevent pullout during cutting. Inspect the cutting edges and corner radius for chips or wear before each use and replace the tool if damage is observed.