Manually operable tool for drilling and/or removing material...

Details Manually operable tool for drilling and/or removing material... Manually operable tool for drilling and/or removing material...

B - Operations, Transporting

25

D

B25D 13/00 (2006.01) B25D 16/00 (2006.01) B25D 17/00 (2006.01)

Patent

CA 2172091

A manually operable tool, such as a hammer drill, for drilling and/or removing material in at least one of brittle material and low ductile material, has a continuously rotatable chuck and a motor driven striking mechanism for transmitting impulse-like blows to a tool bit held in the chuck. The tool includes members for transmitting impulse-like blows composed of superimposed axially-directed blows and torsional blows to the tool bit in the chuck for forming drilling blows. Further, an adaptor can be provided for attachment to the hammer drill containing the members for affording the superimposed blows.

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