Hammer boring tool for stone and similar materials has chisel on wobble tube which can be moved radially to centrally running milling drive

摘要

The hammer boring tool has a bit (4) mounted on a wobble tube (2) which can be moved radially relative to the centrally running milling drive. A striking action is induced from inside the wobble tube acting on one or more of the bits, by means of one or more striking masses (28) inside the wobble tube.