Product Details: The CLEVELAND high speed steel keyway end mill is engineered with precision ground flutes for accurate cuts and fine tuning operations. Constructed from high-speed steel, it offers durability and longevity, optimized for cutting keyways for perfect fits in various materials. It retains sharpness under intense heat, reduces chatter for smoother finishes, and is versatile across multiple metals. The center cutting design enables efficient plunge cuts, while enhanced edge retention minimizes downtime.