I bought this pencil butane torch last year to heat a screw locktited on my FWB 65. Worked like a charm. This week I could not get the Haenel 28-R rear cap to let go. Heated it briefly and off it came. What is nice is the the flame is so small and contained, it easy to control and not go overboard. Flame is probably only 1/4 inch long. Could put right on screw head. I tried various soldering irons and just could not get enough heat to do anything.

http://i168.photobucket.com/albums/u...ps7e0z7yua.jpg