70 lb weight class. 1-1/4 inch Hex. Hand held breaker with an anti-vibration handle. Nothing equals the impact force of hydraulic breakers. With the best power-to-weight ratio, higher blow energy, and lower noise level than pneumatic breakers, Stanley hydraulic breakers are simply the best choice. Utility Construction Street Maintenance Repair of Gas mains Featuring a feathering on/off valve which controls blow speed, making startup and initial tool placement easy. Diaphragm accumulator provides trouble free operation with system back pressures up to 250 psi (17 bar). Spring dampened, anti-vibration handles reduces operator fatigue, allowing the breaker to float in the user’s hands. Built in handle stops allow the operator to apply full body weight in tough applications.