Hi there NJdiverTony! I just use my regular basic sharpening steel and sometimes the diamond steel for my serrated knife.. What kind of knife do you have? Chef Phil has some really great tips on knife sharpening. I learned a lot from him. You might want to check it out too.
http://www.jesrestaurantequipment.com/jesrestaurantequipmentblog/knife-sharpening-101-chef-phil-knife-sharpening/