Manual screwdriver Wera 05074790001 Single Straight screwdriver Length 133 mm

The Wera 05074790001 manual torque screwdriver is a single straight screwdriver 133 mm in length with a factory pre-set torque adjusted to the smallest scale value. It provides a constant, repeatable torque for applications that require the same torque setting each time. The tool features Rapidaptor quick-release technology for fast bit changes and accepts bits with a 1/4" external hexagon drive (DIN ISO 1173-C 6.3 / E 6.3). The multi-component Kraftform handle combines hard and soft zones for efficient high-speed use and user comfort, and the screwdriver offers unlimited loosening torque to break free stuck screws.

Advantages

Factory pre-set to the smallest torque scale value for consistent tightening; torque can be adjusted within the measuring range using an additional tool and re-calibrated with the stated kit (code 05137003001). Rapidaptor quick-release bit holder ensures fast bit changes. Compatible with standard 1/4" hex bits according to ISO. Multi-component Kraftform handle reduces hand fatigue during frequent or speed work. Unlimited loosening torque allows controlled slackening of stuck fasteners.

Suitable for

• Precision assembly tasks requiring repeatable torque
• Electronics and small appliance repair
• Maintenance work where a constant low torque is needed
• Professional and DIY jobs using 1/4" hex bits

Key specifications

• Brand: Wera
• Model / MPN: 05074790001
• EAN: 4013288179395
• Type: Manual torque screwdriver, single straight
• Length: 133 mm
• Drive: 1/4" external hexagon (DIN ISO 1173-C 6.3 / E 6.3)
• Torque: factory pre-set to smallest scale value; adjustable within measuring range with extra tool
• Features: Rapidaptor quick-release, multi-component Kraftform handle, unlimited loosening torque

How to use

Select a compatible 1/4" hex bit and insert it into the Rapidaptor quick-release holder until it locks. Use the screwdriver to apply torque until the preset value is reached; the tool is set at the factory to the smallest scale value. To change the torque, use the extra adjustment tool and follow the torque adjustment procedure; if needed, order the re-calibration kit (code 05137003001) and verify settings with a torque tester. For loosening, apply steady force — the screwdriver provides unlimited loosening torque to release stuck screws.

Usage recommendations

Check the set torque periodically with a calibrated torque tester after adjustment or extended use. Use only bits compliant with DIN ISO 1173-C 6.3 / E 6.3 and avoid excessive side loads to maintain accuracy and service life.