Over the years, we've used many types of fret wire of various manufacturers.
Currently, we mostly use Jescar fret wire.
Stinger:
The standard fret type we use on the Stinger model is Jescar 47090. They considered as medium width and height.
Height: 1.193mm (.047"), Width: 2.286mm (.090")
Classic design models (Heartbreakers, S-Classic, T-Classic):
The standard fret type we use on the classic design models is Jescar 55090 (6105 specs). They considered medium/high frets.
Height: 1.397mm (.055"), Width: 2.286mm (.090")
Optional Fretwires:
Jescar 57110 Jumbo (6100 specs)
Height: 1.447mm (.057"), Width: 2.794mm (.110")
Jescar 55090 Stainless Steel (6105 specs)
Height: 1.397mm (.055"), Width: 2.286mm (.090")