So, Santa brought me a nice duo of Amy Roke pricking irons (2 + 5 teeth, 3.0 mm).
The issue is that, in my opinion, they are not sharpened. I tested them in some chrome tanned goat and was a bit difficult to have the pricks well done at once.
I would like to know how I should sharpen these tools? I have never sharpened any iron/chisel at all.... :(
THANKS!

I have 3 Amy rokes. They are hand polished, really the best I have seen. Please not that they are not ment to puncture the leather all the way. Hence the name. But to mark for stitching. I really can't see you being able to make them any better.