Sealey STS100 Torque Screwdriver 2-10Nm
Quick guide for the Sealey STS100 2-10Nm torque screwdriver. Learn how to adjust torque settings, operate the tool correctly, and view technical specifications.
Table of contents
Quick guide from the manual
The Sealey STS100 is a precision torque screwdriver designed for professional automotive applications. To adjust the torque, pull out the adjusting ring at the rear of the tool, turn it to the desired setting on the scale, and release the ring to lock it in place. Always stop applying force immediately when you hear the click mechanism, which indicates the set torque has been reached.
Safety instructions
- The screwdriver is a precision tool; do not drop or abuse it.
- Ensure the tool is in good condition before use. Do not use if damaged or faulty.
- Maintain correct balance and footing; wear non-slip shoes.
- Keep children and unauthorized persons away from the working area.
- After use, adjust the tool to the lowest torque setting (but not below) and store it in a safe, dry, childproof location.
Operation
Adjusting Torque:

- Hold the screwdriver in one hand.
- Use your other hand to pull out the adjusting ring located at the rear of the screwdriver.
- Turn the ring clockwise to increase the setting or anti-clockwise to decrease it.
- Align the required torque value with the red line on the scale.
- Release the adjusting ring and ensure it is fully pushed back into place.
Using the Tool:
When tightening a screw, nut, or bolt, apply force steadily. You will feel and hear the mechanism click once the set torque is reached. Stop applying force immediately to avoid overtightening.
Technical specifications
- Drive: 1/4" Sq.
- Range: 2-10 Nm
- Length: 240mm
- Contents: 34-piece set including various Slotted, Phillips, Pozi, TRX-Star, and Hex bits, plus a 1/4" Hex Adaptor.
Maintenance and disposal
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories, and packaging should be sorted and taken to a recycling center. If the product becomes unserviceable, dispose of it according to local regulations.
Manufacturer information
Sealey Group
Practical help
Common problems
Stop applying force immediately when the click mechanism is heard.
Do not use the tool; it is a precision instrument that requires proper care.
Before use
- Ensure the tool is not damaged or faulty.
- Wear non-slip shoes and maintain proper footing.
- Keep the work area clear of unauthorized persons.
- Verify the torque setting before starting.
Specs in practice
- Torque Range
- 2-10 Nm (adjustable)
Images and diagrams
- The adjusting ring is located at the rear of the screwdriver handle.
- The red line on the scale indicates the currently selected torque setting.
Model compatibility
- Suitable for automotive applications including airbag, crash sensor, and inertia reel fixtures.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.