B90 is mainly used for demolition work, road maintenance or mining and construction project.Big impact power and low air consumption, easy for operation; mounted with advanced silencer which ensures compliance with noise standard. It is environmental friendly and protect operator’ s health. Built in lubrication systems increase service life. Specification: Weight 34kg Length 745mm Shank Size 32mm* 152mm Air Consumption 27L/ S Impact Frequency 16Hz Air Hose Inner Dia. 19mm