The geometry of the circumferential ridge or groove can optionally be modified to increase or decrease the amount of {HEAD ~ force} required to effect insertion or {TAIL ~ removal} of the ferrule inside the cavity 
required to effect
The geometry of the circumferential ridge or groove can optionally be modified to increase or decrease the amount of { HEAD ~ force } required to effect insertion or { TAIL ~ removal } of the ferrule inside the cavity
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH