Bosch GDS18V-400 Impact Wrench

Bosch GDS 18V-400 Professional

Cordless Impact Wrench

Bosch’s Powerful 400Nm Impact Wrench, where Power & Durability Come Together

• Most powerful device in the mid torque class
• Ideal for various bolting applications
• Powerful enough to tighten M20 bolts (30mm nuts) thanks to 400 Nm torque
• Improved robustness thanks to higher lifetime of the critical components
• Auto Bolt Release (ABR) feature makes disassembling easier by ensuring tool is automatically stop when nuts are loosen

Additional data

Battery voltage – 18.0 V
Torque, max. – 400 Nm
No-load speed  – 0 rpm
Tool holder – 1/2” Square
Breakaway torque, max. – 600 Nm
No-load speed (1st level) – 0 rpm
No-load speed (2nd level) – 0-0 rpm
No-load speed (3rd level) – 0-0 rpm
Weight excl. battery – 1.25 kg
Impact rate – 0-3,700 bpm
Screw diameter

Screw diameter M 10 – M 20
Total vibration values (Tightening screws and nuts of maximum permitted size)

Vibration emission value ah 10 m/s²
Uncertainty K 1.5 m/s²
Tightening screws and nuts of maximum permitted size

Vibration emission value ah 10 m/s²
Uncertainty K 1.5 m/s²

Screw diameter

Screw diameterM 10 – M 20

Tightening screws and nuts of maximum permitted size

Vibration emission value ah10 m/s²Uncertainty K1.5 m/s²

The A-rated noise level of the power tool is typically as follows: Sound pressure level 91.5 dB(A); Sound power level 102.5 dB(A). Uncertainty K= 3 dB.

Product Highlights

The GDS 18V-400 Professional cordless impact wrench dominates the mid torque class in terms of power and robustness. It is perfect for use with M10 bolts and M12 bolts. Providing 400 Nm torque, this impact wrench is powerful enough to tighten even the maximum size of M20 bolts. The tool is further improved in its robustness by enhancing the lifetime of the critical components. Belonging to the Bosch Professional Heavy Duty line, this impact wrench is perfect for use in extreme environments.