MARCATOCutter Attachment, Made in Italy, Works with Atlas 150 Pasta Machine Mafaldine Pasta Maker Attachment Metallic MC000428

Which one is the smallest size of atlas 150 pasta maker? This one or angel hair model? I want to make the smallest size noodle for my buns filling.

does it make round spaghetti

Are the attachments the same for the 180 and the 150?

What size of the squares in this attachment, 1.2" or 1.7"?