
Functions
- The STAHLWERK ADS-20 ST brushless 20 V cordless impact wrench is virtually wear-free thanks to the latest generation of brushless technology.
- A powerful 20-volt system with the latest lithium-ion technology guarantees maximum power for particularly long working periods.
- The low weight, ergonomic handle and good feel make it comfortable to work with, even during longer work cycles.
- The cordless impact wrench impresses with a maximum torque of 500 Nm, which can be used to loosen or tighten screws with particular power.
- The tightening torque can be set in three stages: 280 Nm, 350 Nm or 500 Nm.
- The impact wrench has a 1/2 inch socket, which makes it easy to replace the impact wrench tool.
- An integrated rotary stop function enables safe and effective work.
- The scope of delivery includes a 20 V Li-Ion battery with a capacity of 4,000 mAh and an integrated charge level indicator.
- The replacement battery is suitable for all STAHLWERK 20 V battery-powered tools and is supplied without a charger.
Features & benefits
- The wear-free brushless technology ensures more power and a longer service life for the appliance. No carbon brushes in the motor, state-of-the-art technology!
- The 20 V cordless impact wrench is the ideal tool for a variety of manual applications.
- The screwdriver delivers a maximum torque of 500 Nm for powerful loosening and tightening of screws and nuts. The tightening torque can be set in 3 stages: 280 Nm, 350 Nm, 500 Nm.
- Convenient 1/2 adapter for impact wrench tool.
- Integrated rotation stop function for safe and effective work.
- The low weight and ergonomic, non-slip handle make the impact wrench easy and intuitive to use: Incl. LED light to illuminate the work area.

Technical Data
| Model | ADS-20 ST impact wrench |
| Battery voltage | 20 V |
| Tool holder | 1/2" |
| Tool speed | 0 - 2350 min-1 |
| Max. max. torque | 500 Nm |
| Torque levels | 1 stage: 280 Nm 2 stage: 350 Nm 3 stage: 500 Nm |
| Dimensions (L x W x H) | 270 x 210 x 70 mm |
| weight | 1.7 kg |
| Model | STAHLWERK 20 V battery 4 Ah Li-Ion |
| Dimensions (L x W x H) | 120 x 75 x 70 mm |
| Battery weight | 640 g |
| Battery voltage | 20 V |
| Battery capacity | 4.0 Ah (4,000 mAh) |
| WEEE reg. no. DE | 85577200 |
Scope of delivery
- 1 x STAHLWERK Brushless cordless impact wrench 20 V ADS-20 ST
- 1 x 20 V battery 4 Ah Li-Ion
STAHLWERK Schweissgeräte Deutschland GmbH was founded in 1998 and offers original welding equipment as a manufacturer. We are your professional and reliable welding equipment supplier. Product safety carries the registered trademark STAHLWERK. The company responsible for product safety is STAHLWERK Schweissgeräte GmbH
located in Bornheim
Mainstraße 4
53332
Germany. For questions regarding product safety
please contact us at the electronic address info@stahlwerk-schweissgeraete.de or by phone at +49 228 24331713. The person responsible for product safety is Alexander Hamann.