The only problem with all the coiling devices is that they have predetermined sizes. I have had the Artistic gig in my hand at the store and put it down. I build a lot of Protank coils and try to get the largest coil as possible into the tiny space. I use a 1.82 mm bit that fit perfectly. If I could find a suitable piece of that diameter wire rod I would be all over the Artistic coil gizmo.