Key way 4 opens to its front end at {TAIL ~ front face} 6 of {HEAD ~ housing} 2 and is blind or closed at opposite end 7 of housing 2 
Key way 4 opens to its front end at { TAIL ~ front face } 6 of { HEAD ~ housing } 2 and is blind or closed at opposite end 7 of housing 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH