I have to say that the best feature is access to CAD files for all of McMaster Carr’s inventory. I have been using this feature to print fasteners so I no longer have to make a trip to Ace Hardware for those hard to find parts. I just find what I need in the McMaster catalog and print a copy. Right now I am printing a 1/4-20×1″ bolt and thumbnut for a project. http://ift.tt/27mcch3 http://ift.tt/2ez3JCq