You can find them at any hardware/home depot kind of place. For this task, I would recommend a 6" to 8" long medium/fine tooth file. Get a quality one, it will last a lifetime, or sometimes you can find sets of 2 or 3 in different sizes.

Sam,
Thank you so much, I thought I may have to buy jewelers files, or something like it. I will pick them up this weekend if I can get out.
Bless,