It won't take long to see why the new Hilti DD 250 diamond coring tool is in a league of its own. Jan 4, 2017 Coming soon! It won't take long to see why the new Hilti DD 250 diamond coring tool is in ...

From small anchor holes to large diameter holes in concrete with heavy rebar, the new Hilti Diamond Coring Tool DD 250 delivers fast drilling speeds and more than enough torque to get the job done.

Andrew Cohen, Marshall Pardey and Doug Schnurrenberger listening for the coring tool in the drill string. This photo may only be used in connection with a story about the research described in this ...