I'd say either is fine. I drilled a hole and used a small dry wall saw.

 

Dremel...with an exacto knife to fine tune the hole.
Remember...always start small and work your way up to the desired size hole.

 

Rotozip...

 

I used masking tape and drew the outline of what I wanted to remove.

You have one shot at it. Less is best. Take your time.

I used a high speed air tool with a small cutting bit.

 

Dremel then a utility knife to cut the corners.. The plastic is very easy to cut with a knife..

 

Thanks Guys for the info, the tape and drawing the outline will help.

 

just be sure you make that hole exact, on the tight side is better. It don't take much to overcut and your switches will flop around.

 

I used a utility knife heated with sm propane torch
took minutes and no mess. Cuts like butter.

 

That sounds like an easy way. Will try this weekend, 3 switches to install, a - arm guards, lighted whip, and lift kit going in. Ah this is as much fun as modifying my truck, but a whole lot less expensive!

 

Fun yes....less expensive, IDK about that. lol

 

rotozip was the best for me