The deeper you run the cold planer, the slower you have to go. "If you have to take out 6 in. of asphalt, you are probably better off doing two passes to get to your 6 in. rather than doing it in ...

“Trimble Roadworks for milling and cold planing takes both the guesswork ... creating less work for pavers, decreasing asphalt usage, and increasing overall surface smoothness.” ...