parameter for tolerance

[Redro]

hello

I have found a drawing with a unknown parameter 

can help me with support about this problem?

i don't know where is it from , 

[Mahesh_Sharma · Accepted solution]

@Redro 

I think table is a hole table and the parameter &U_tol is feature level parameter to define tolerance. Check the relation in part for details about  &U_tol..