They're probably the same in every way, except that they are not contoured for a woman's body parts, like underarms, etc. So the con is that you may not be able to get as close a trim. That's it.
Take you model number from the id tag into your local Toro dealer. They will be able to help you. To find your dealer, http://www.toro.com Toro does not sell parts directly to the public.
Black & Decker 12" Cordless 18-Volt Cordless String Trimmer Task Force 12" 18-Volt Cordless Trimmer/Edger ....Item # 65020 .....Model # NST2018 Item # 248920 Model # 21023 $99.97 $79.96 Lowes has 2 cordless both are 18 volt and 12" If you have a larg...