The electric rotary tool 7, wherein the input end of {TAIL ~ the drive shaft} is provided with a slotted end containing a plate projecting outwardly from {HEAD ~ the shaft} 
The electric rotary tool 7 , wherein the input end of { TAIL ~ the drive shaft } is provided with a slotted end containing a plate projecting outwardly from { HEAD ~ the shaft }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD