Makita DTW180RMJ Lithium-ion Powered Impact Wrench; 3/8" Square; 180Nm Torque; Brushless 18 Volt; Complete With 2 x 4.0 Ah Batteries; Charger In A MAK-PAC Case

Reverse rotation auto stop mode:
This mode works only with pulling the trigger fully in counter-clockwise rotation.
When the bolt/nut gets loosened enough, the tool stops the impact and rotation in 0.2 seconds.

2-stage impact power selection
Compact & Lightweight

Technical info:
Nut Busting Torque 310 Nm
Battery Type Lithium-ion
Voltage 18 volt
Battery quantity (4.0Ah) 2
Driving Shank 3/8" Square
Blows per Minute (Hi) – ipm 0 - 3,600 ipm
Blows per Minute (Lo) – ipm 0 - 2,000 ipm
Standard Bolt M8-M16
High Tensile Bolt M6-M12
Noise sound pressure 89 dB(A)
Noise sound power  100 dB(A)
Noise K factor 3 dB(A)
No Load Speed (Hi) 0 - 2,400 rpm
No Load Speed (Lo) 0 - 1,300 rpm
Max Fastening Torque 180 Nm
Vibration: Fastening Bolt 9.0 m/sec²
Vibration K factor  1.5 m/sec²
Net weight 1.2 - 1.5 kg

Standard accessories:
Battery BL1840 18 volt Li-ion x 2
DC18RC Compact Charger
Makpac Connector Case (Type 2)
Belt clip