Then, the battery 30 is reversely placed in {TAIL ~ a “tool” mode position} in {HEAD ~ the cavity} 17 of the main body 10 
Then , the battery 30 is reversely placed in { TAIL ~ a “ tool ” mode position } in { HEAD ~ the cavity } 17 of the main body 10
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH