The profiler frame 322 is recessed into {HEAD ~ the lower tubular section} 326 as shown in FIG 10 to provide for {TAIL ~ a flat surface} 344 on tubular assembly 324 
to provide for
The profiler frame 322 is recessed into { HEAD ~ the lower tubular section } 326 as shown in FIG 10 to provide for { TAIL ~ a flat surface } 344 on tubular assembly 324
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH