Construction Vehicles Climb onboard with the Mighty Mechanics who will show you the machine used for big demolition jobs, the Crawler Excavator and the pounding Pneumatic Drill Excavator used for breaking concrete, Dumper trucks and more... Mighty Mechanics...is a must-read series of four books, showcasing a gallery of vehicles that appeal to young fact-hungry children. Kids can join the mechanics for a fascinating look at Trucks and Tractors, Emergency Vehicles, Monster Trucks and Construction Vehicles, each starting with a look at the tools needed to fix each one.