removed carpenting from staircase and was happy to find hardwood treads underneath. however all 13 steps have 3 large nails on the tread surface. Some of the treads have a nail that is bent over and not sitting flush with the surface. pics are attached to show the issue. 9 of the 13 steps are boxed in on both sides and sitting in a groove on the stringer so I am not really sure if the nails are serving much of a purpose. how would one go about correcting this? if it is a matter of pulling the nails out how can i do this so as to not damage the tread surface?
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