Many times we are faced with the challenge of drilling a hole that requires a very long drill bit to reach past obstacles. Long drill bits are available, but they are expensive and hard to get. Recently, I was faced with this problem while working on my 1/96-scale USS monitor. I needed to drill the hole in the hull for the propeller shaft. The overhang of the hull prevented me from getting a drill close to the hole, and none of my bits were long enough. My cheap solution? Super glue and brass tubing.
I needed to make a 1/8-inch hole, so I used some K&S 5/32 tubing that has a 1/8-inch inner diameter from the hobby shop. I superglued the drill bit into the end of the tubing and then drilled the hole. Superglue bond is more than strong enough for drilling wood or resin. When you are done, just hold the drill bit/tubing joint in a candle flame or use a heat gun, and the glue will release. I use this method to hold metal parts such bearing caps together all the time for machining. Simple heat application releases the parts.
Many times we are faced with the challenge of drilling a hole that requires a very long drill bit to reach past obstacles. Long drill bits are available, but they are expensive and hard to get. Recently, I was faced with this problem while working on my 1/96-scale USS monitor. I needed to drill the hole in the hull for the propeller shaft. The overhang of the hull prevented me from getting a drill close to the hole, and none of my bits were long enough. My cheap solution? Super glue and brass tubing. 
