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