You don’t need those tools. It’s very easy to do with a hairdryer and a guitar pick. The point of the tools which is mentioned in the video is it allows a moron with no skill or hand to eye coordination to reliably replace batteries all day with no failures and a perfect finish.

You, a competent person, will just use a guitar pick and your fingers to do the same job. Or at least you won’t have anyone else to blame if you mess it up when apple offered the tools or the in store service to have it done.

Apple has a tool for putting glass screen protectors on phones, or unplugging the power cable from their monitors. All things normal people can manage just fine with their hands. But the tool costs very little when used regularly at a store and prevents the rare mistakes.