Tree//Steptoe Mill Info? Practical Machinist
Jul 25, 2020#0183;#32;The head mounted on the overarm is a Tree milling head. As the previous poster noted, Tree may have initially made just heads before going on to produce complete milling machines. Another common quot;vertical conversionquot; milling head manufacturer was Fray. They too, also only made a vertical head, until eventually coming out with a complete mill.