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