Makita 
Impact Wrench: Incredibly high torque. TOOL ONLY!
USER BENEFITS:
Rocker type switch for easy forward or reverse operation.
Externally accessible carbon brushes for easy maintenance.
Double Insulation, Reversing, and Carry Case.

TECHNICAL SPECIFICATION:

Continuous rating input: 400W
Capacities: Standard bolt: M12-M22 High tensile bolt: M12-M16 Square drive: 12.7mm
No load speed / Impact per min: 2,000 / 2,000r/min
Overall length: 282mm
Max Fastening Torque: 350Nm
Net weight / Power supply cord: 3.0kg / 2.5m

Supplied in Carton
Excludes Bits
Includes Carry Case