The insert, , and {TAIL ~ fin} , are secured via grub screws, , tightened by {HEAD ~ Allen key}  
The insert , , and { TAIL ~ fin } , are secured via grub screws , , tightened by { HEAD ~ Allen key }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH