During movement of {HEAD ~ the key holder} from {TAIL ~ an initial position} to a cutting position, the force transmitting member and leaf spring move together 
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During movement of { HEAD ~ the key holder } from { TAIL ~ an initial position } to a cutting position , the force transmitting member and leaf spring move together
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH