Aluminum can be hard to drill, despite its easy .
"Aluminum is considered by many to be one of the easiest machining materials, but it does present its own unique challenges"—particularly when drilling, explained Elliott Frazier, a product manager at Tungaloy America Inc., Arlington Heights, Ill. "Aluminum is a generally soft, nonferrous, ductile material with low density and naturally high resistance to corrosion. Aluminum is ...