The HD140Ds Hydraulic Hammer is billed by the Peoria, Ill., company as "the first of a new generation of work tools for the construction, demolition, mining and aggregates industries."

* Ideally matched with the Cat 325C and 330C hydraulic excavators and similarly-sized competitive models.

* Hammer measures 103.9 inches from top plate to the tip of the tool with an impact energy rating of 3,155 ft.-lb.

* Operating weight is 5,100 pounds.

* Impact frequency is 350 to 600 blows per minute--25 percent to 30 percent higher than the previous design.