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