Bosch 11335K 35-Pound 1-1/8-Inch Jack Hammer Kit with HDC400 Hex Chiseling Dust Collection Attachment, 1-1/8″

Unmatched power to weight ration; 34-feet-per-pound of impact force; faster removal rate in its class by far
Active vibration control handle–a unique flexible 2 -handed design that reduces vibration by 40-percent over the closest competitor
Versatile bit retention–accepts Bosch 1-1/8-inch hex steel as well as standard 1-1/8-inch air steel
Unique clamping band with ski-boot type clamp provides easy installation on the hammer
Flexible clamping band allows the hose to be adjusted up or down in the band to accommodate different chisel lengths
Dust port fits Bosch 1-3/8-inch vacuum nozzles and can also be converted to 1-1/4-inch or 2-inch nozzles using the appropriate adapter