Quoted from WJxxxx:https://www.amazon.co.uk/gp/product/B00MMU1384/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I used these exact pliers for 1mm & 2mm 'Spring Steel Wire' from eBay.
They coped easily with the 1mm, the 2mm was a bit harder and needed a fair bit of grip pressure, but they got the job done.
I made a lot of replacement gates for the Catacomb bagatelle gate that was .055"/ 1.3 mm piano wire just by using just a pair of alligator nose vice grips. For the .093/ 2.3 mm wire, I don't have enough grip in my hands to make nice tight bends with the pliers. Hence, the large size nut & bolt wire bender.