The PR950B milling machine features a quiet C27 Tier II diesel engine and enhanced cooling system. Developing 947 hp at 1800 rpm, it makes up to 15-in.-deep plunge cuts with its standard 86-in. half-lane cutter. Three other cutter widths are available: 103 in., 135 in., and full-lane 150 in. Unlike previous designs that required the machine engine to run when changing teeth, the 20-cfm air compressor is powered by its own 10-hp diesel engine. Terex Roadbuilding. 405-787-6020.