The BRK 55 hydraulic breaker delivers 1450 bpm to break up concrete, asphalt, or frozen soil, and lacks external side bolts or other protruding parts that can injure an operator. Its slim design gives operators an effective line of sight to the working tool point. The hoses are fitted with flat-face HTMA quick-release couplings for fast, easy connection. Vibration-reducing handles also are available. Chicago Pneumatic. 800-760-4049.