When Buying File last focused on motor graders, the impact of Caterpillar's M-Series models and their joystick controls was up for debate. The steering-wheel-removed M-Series had just been unveiled, ...

The new Cat M Series 3 motor graders—12M3, 140M3, 160M3 and their all-wheel-drive (AWD) counterparts—meet Tier 4 Final emissions standards and incorporate a number of new features designed to enhance ...