These little gems make deburring a breeze. They have a blade that is spring loaded and deburrs both sides of the hole in a single pass. As the tool moves into the hole the blade shaves off the burrs, and once they are clean moves through the hole. On the way out the other side of the blade does the same thing. They have an adjustable tensioner that allows you to set how much material to take out of the hole. Also the blades are replaceable (but it is difficult to do in the smallest one.) It makes deburring as easy as passing a drill bit through the hole, and you can also deburr both sides of a hole even if you can’t get to the backside of the hole. The only negative is that the smallest one (which is the one you need to use the most on an RV) tends to be a little fragile. It is important to make sure that you keep the tool perpendicular to the hole to keep from breaking the blade.

The Burraways are expensive new, but can usually found on ebay for pretty cheap (I actually snagged a brand new full set of 10 for $20 on ebay, they are usually about $80 each.) They are made by Cogsdill Tools and can be ordered directly from them.