Users could craft the exact amount of items they want providing the have the materials needed.
Users such as myself who like to craft in the large quantities won't have to be forced to either craft 50 at a time or make a file which they would have to run through console.
Potential Issues/Exploits:
People finding bugs after implemention potentially causing them to lose items (for example crafting 2.5 M202's only gives you 1)
People managing to do as said above but it giving you 3 instead of 1 or 2.
Additional notes:
When you go to craft something you get given the option to craft x1, x5, x10, x25 or x50. With this being implemented users won't have to make a file with the console command and then run it in the console just to craft an exact ammount. Instead when going to craft something users will be greeted with the regular options and then an extra one saying something a long the lines of "Craft Specific Amount", which will either greet them with the slider option used in the trade window or a text bar they can type the exact amount into.