The Billy Goat Grazor is designed to help facilitate the cleaning and removal of weeds and debris from cracks or joints. The Grazor is a gas powered, manually push operated unit that spins a 10” wire wheel at 3600 RPM that cleans the dirt and debris out of the joint and helps clean the oxidization and aged asphalt off the sides of the joint so as to allow the sealant to gain improved adhesion. Proper eye protection is required. For professional use only.