420 W (max. output) Hitachi powerful motor and

   Class-top tightening torque 250 Nm (2,210 in-lbs.)
Stronger screw connection thanks to the cylindrical

   housing containing an insert screw for higher durability
Higher durability thanks to the metalic bearing bushing 
Slip-resistant and comfortable soft grip handle 
Housing is covered with elastomer entirely
Steplessly variable speed trigger switch 
Forward / reverse changeover pushing button 
Speed change lever is selectable between high / low

   speed according to the operation
Grip end is shaped like a finger stopper for portability
Externally accessible carbon brushes for easy
   replacement and double insulation