{HEAD ~ A typical laser hole} has {TAIL ~ a burr} and dross at the edge of the hole opposite the laser  
has
{ HEAD ~ A typical laser hole } has { TAIL ~ a burr } and dross at the edge of the hole opposite the laser
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH