- 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
