Top 100: Voracious Appetite, Sure-Footed

Geo-Boy brush-cutter tractors, using 200 horsepower (standard) and 250 horsepower (heavy-duty) Cummins diesels, employ Fecon cutter heads capable of clearing brush and trees up to 6 or 8 inches in diameter. Cutter heads can be raised more than 11 feet and tilted for effective cutting. The machines feature rubber tracks (3.0- to 3.5-psi ground pressure), walking-beam undercarriage, hydraulic drive (propel and cutter head), 20,000-pound winch, climate-controlled cab and rear-view camera. Estimated price: $195,000 to $235,000.