Buzz droids were mechanized units of infantry that traveled around by rolling up into there ball-like shell and moving along the ground. They were normally found in space and were often carried by the dozens in Droid Tri-fighters and StarVipers. They carried a buzz drill that could tear apart ships giving them the name, Buzz Droid. When deployed by droid aircraft, they would land on an enemy aircraft and proceed to tear it apart and render it useless, as seen in the Revenge of the Sith movie.
Buzz Droid Wepons:[]
Buzz saw
Mini Gun
Metal Claws Those are the weapons that make them effective. They also carry blue prints in their droid brain,so thay can know a ship's weakness.