Yes the jaws are smooth, with no mfr markings that i can see. So, that's what it's called? a Head knife?
Osborne lists two knives like this. One is listed as a round knife, while the other is listed as a head knife.
Their "round knife" is heavier, and a half inch wider, point to point. Otherwise I see no difference. I've
always used "head knife" for all that share this shape.
The pliers are suitable for jewelry work with those smooth if they are not specifically designed for such.