Ok I got some badass frame sliders, BUT with the f4i fairings I have to cut them to make them fit. Anyone ever use one of those circular bits on fiberglass. I do not want to tear up the fiber.

 

I thought about using a dremel but I won't be able to make it look like a perfect circle.

 

I'm not sure about damaging the fiber but...

I have a Sears brand Dremmel and it came with an attachment for making circles. You drill a hole and then put the attachment in it and it pivots in a circle around the whole... Might be able to find one of these for yours if it comes down to it?

 

I have a friend that dremmeled out the fairings on his 97 f3 for frame sliders and it came out great.. no paint damage or cracks

 

a hole saw bit would be your best bet for a perfect circle. as far as the fibers... tape it up before drilling to help minimize the damage. if it doesnt work out well, you can get some black rubber edging to run around the inside of the cut and clean it up really nicely.

 

should be fine if you are drilling from the pretty side. i work on/bore holes in fiberglass doors at work all the time with holesaws