Sometimes some wood or metal projects need to be smoothed out or require a small cut. Using CNC or other machines might be a bit of an overkill. Having a quality disc sander in your workshop can be a godsend for these types of issues.
A disc sander can help prepare metal for welding or smooth out wooden projects using different wheels with different grit for each material. It provides a handy tool for smaller jobs or jobs that require more hands-on finesse. For a full discussion on disc sanders, please click here:: What Disc Sander Should I Buy?