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