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