Once you’ve got a bio, you can slant it for many different purposes. For example, let’s say you’ve created a bio for the About page on your website. You can slant that to create a profile for your social media accounts, or a profile you can send to your writing clients. You might use the bio as-is in your press kit.
By the way, if you’re not sure what goes into a press kit, here’s a quick template I created for my clients.
You can also use your bio in introductions you send out to prospective clients, and in the back matter of your ebooks.