Before you begin working on the stainless steel kitchen sink, be sure you have all of the right tools and parts for the project. Having these items ready ahead of time will save you both time and frustration. Having the right tools and parts for the job ahead of time can also help you avoid the need to run to the store at the last minute. A drain assembly kit costs less than $15 and can be purchased at most home centers. This kit will provide you with everything you need for a successful repair.