A CAD (Computer Aided Design) application is a piece of software that can help you create 2D and 3D technical drawings, used in various scientific fields. If you are in need of applications that will let you view CAD files on your Mac, then any of the tools from the following list will do the job.
Feel free to add any alternative to CAD Viewer for Mac that you know of.
Suggest Alternatives
I also recommend AutoCAD WS or progeCAD Viewer DWG. Both are free to use and can be easily downloaded in Mac App Store.