Through research, this company has proven heavy milling applications with excellent surface roughness results is possible when using the AMS-1600 and a 3.0 mm diameter coated end mill. Tests performed on an aluminum block (A5052) generated surface roughness as low as 0.57 µm. These findings were based on a cutting depth of 0.05 mm x 2.5 mm and a feed rate of 2,500 mm/min.