This NX 7 video tutorial shows a technique of using one sketch to create multiple features having different extrude offset and draft. The target of this tutorial is to create bosses with screw holes. This tutorial also shows the creation of electrical contacts in a cordless drill as an example to show, how to use the Offset options of the Extrude command.
In this Nx video tutorial, NX User Interface and Menu Options are explain in detail. This is a good starting point for beginners who are first time learning NX. For this tutorial NX 4 is used.