NewGen sockets are more useful than standard sockets. Thanks to the design of this new generation sockets have a grip tolerance of up to 50 degrees. It also offers ease of pull-out to the user. SolidWorks 2017 with modeled. 3D Studio Max 2018 and also attached 2015 version too. Unit is millimeters. 1:1 Scale in real sizes. Many file formats are available.