How to get the nuts/screws? out

I found my brother's old tool. It's a Mac ETP34A. Is this one still available, Mike?

Here's some pictures of it.

View attachment Mac ETP34A A01 B.jpg

View attachment Mac ETP34A A02 B.jpg

View attachment Mac ETP34A A03 B.jpg

View attachment Mac ETP34A A05 B.jpg