The Kent line of F-Series hydraulic breakers ranges from the KF 1, with an impact-energy rating of 150 foot-pounds, to the KF 70 Qt, rated at 5,259 foot-pounds. The KF 1 and its companion models, KF 2 and KF 3, are designed for light-demolition tasks. The two smaller models fit mini-excavators and compact utility loaders, while the KF 3 is for mini-excavators and skid-steer loaders. The KF 3 is also available in a Qt version for use in applications that are noise-sensitive. The big KF 70, designed for use with excavators weighing 48.5 to 77 tons, features a patented dust-intake-prevention system and a greasing system for the front head and bushings.