My father was telling me that about 50 years ago he remember seeing a tool ressembling a skilsaw but with a small chainsaw blade instead of the circular blade. Does this tool still exist? The tool was just like a skilsaw but with a chainsaw blade. The blade would have been about 10" or 12" long and could be held and used with one hand. Would anyone know the maker of this tool or have any pictures? Thanks, would really like to know more about this "old" tool.