Welcome to the forum. Looking at the sketch I assume the part is hollow? If yes, use a simple Extruded Cut for the first hole. Start the sketch on a plane at the center of the part and parallel to the notch (create a new one there if there isn't already one there), then choose "Through All&quo...

I have the body of the part, but I am not able to figure out how to space the holes correctly. Here is what I have: help pic1.png Revolved to produce: help pic2.png What I need is to position three 1/4" holes spaced 120° apart around the cylinder, and .8" above the base of the cylinder. Th...