{HEAD ~ The clearance} between the punch and {TAIL ~ the die recess} are specifically sized relative to the material thickness to achieve optimum fastening characteristics 
between
{ HEAD ~ The clearance } between the punch and { TAIL ~ the die recess } are specifically sized relative to the material thickness to achieve optimum fastening characteristics
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH