Just received my Anker USB-C to USB Female Adapter which fits fine when the phone is not in a protective case. I use an Otterbox type case and would like to avoid removing the phone from the case just to use the adapter.
Question is there an extender to the C connector to be able to reach the phone without removing it from the case?
Connector to reach Protective case
What about enlarging the hole of that protection case.
(Milling with a Dremel)
Otter boxes tend to have rubber gaskets to prevent water/dust intrusion meaning making the hole larger generally makes the rubber gasket covers no longer fit
It actually would be cheaper and easier to Dremel the cable housing to fit into the case. I’ve done this with various cables and stuff over the years. You don’t even need to dremel, a sharp exacto knife does the job well
Perfect! 
Depends on the material of the protecting case or the the plug you are treating.
I feel much safer with the Dremel.
“The first cut is always the deepest” 