If the drilling hole in the concrete wall towards the drill catches a very durable stone, it is even a great tool with a well-sharpened carbide-tipped is powerless: the drill leads to the side or it quickly “sit.” In this case, the rescue steel construction dowel the proper length to: break the rock and drill further.
Recommend to read
THE MOST SUCCESSFUL NAVAL FIGHTER
The Grumman F6F HELLCAT. Analysis of the results of air combat in South-East Asia with the participation of the new Japanese high-speed fighters allowed American experts to draw a...
WALL-HEADSETS
Children, living room, office, bedroom... How many rooms in the apartment? One! — according to our regular contributor and consultant Victor Strashnov. Thanks to them the...
