Electric screwdrivers are generally divided into three series:
The shank diameter of the bit used with the 802 series screwdriver is 6MM.
The diameter of the bit used with the 801 series screwdriver is 5MM
The bit handle diameter for 800 series screwdrivers is 4MM
Before purchasing, each unit must make sure to find out what diameter the handle of its electric screwdriver is, how long the total length is, and how big the screw-driving head is.
