Not sure what your asking? But if you look at the adapter it should have a larger hole drills about half way into it then the rest is a smaller hole. if not your going to have to counter sink the hole or just get a smaller bolt with a locking nut. put some light weight oil on the shaft part of the adapter it will help keep it from locking up to the adapter . Also regularly check the auger blades for tightness. On the front side of the auger blades Everyone whos an old timer uses a burger king straw to help the blades cut even faster. I trimed straw per side. it will cut nicer and smoother. hoppe this helped.