Model 19.......you are right about that, they will only cut in one direction. Basics.......keep the handle of the file in your left hand to "draw" file, or in your right hand to "push", you can do it either way. When we first went into the barrel business
we draw filed all our barrels. The finish was milled rather than planed. Planing leaves those longitudinal marks, milling
leaves occassional bumps. We had a profile mill that took about 15 minutes to mill one flat on a barrel......I could draw
file one barrel while that mill made one cut. The best files I ever found were about a 10" fine cut, made in Finland. Found
them at a flea market. I bought a few from this guy and made the remark, "you'll regret not buying them all". He was
right, I went back and bought all that he had. We finally made a big belt sander to do the job.........draw filing is a lot of
work. If you have a good file, there is no need to go to fine emery paper when you are finished, especially if you are going to brown the barrel. For you guys that do the emery paper bit, try this.......rub it hard with scotch brite wrapped
around the barrel, you will be amazed................Don