I use a Hilti TE 7A 36volt battery operated rotary hammer. I've never used it in asphalt, but it drills holes in concrete, salt and rock and chisels t...

I love the Leica laser pointer and guide lights when working underground. Too bad I cant get a picture in the dark!

You really only need a license in NY to do a boundary survey. From my limited experience with engineered plans they are only signed by a surveyor to c...

I don't have a word suggestion, but is there a chance that he is referring to slope chaining?