Manual screwdriver Wera 05074728001, length 150 mm, height 100 mm

Wera torque screwdriver with a Kraftform pistol handle designed for high torque transmission and ergonomic screwdriving. The tool is factory preset to the smallest scale value and provides a constant torque with repeatable accuracy. It features Rapidaptor quick-release technology for fast bit changes, unlimited loosening torque for releasing stuck screws, and accepts 1/4" external hexagon bits according to DIN ISO 1173 standards. The multi-component handle combines hard and soft zones to enable high working speeds while remaining comfortable to hold.

Advantages

The screwdriver delivers consistent, repeatable torque due to its factory pre-set value and allows later adjustment within its measuring range using an additional tool. Rapidaptor quick-release enables rapid bit changes, and the unlimited loosening torque lets you slacken stuck fasteners without limiting torque output. The Kraftform pistol handle is ergonomically shaped and uses multi-component construction to reduce hand fatigue during repeated operations.

Suitable for

• Precision assembly tasks that require a constant, repeatable torque
• Electronics and small appliance assembly where 1/4" hex bits are used
• Maintenance and repair work involving frequent bit changes

When it may not be suitable

This screwdriver is preset to the lowest torque scale value and, although adjustable within its measuring range with an extra tool, it may not cover very high torque requirements beyond its specified range. For applications that require a different preset or a torque outside the tool's measuring range, consider a higher-capacity torque driver or a power tool designed for greater torque.

Key specifications

• Overall length: 150 mm
• Height: 100 mm
• Drive interface: 1/4" external hexagon (DIN ISO 1173 C 6.3 / E 6.3)
• Handle type: Kraftform pistol handle, multi-component (hard and soft zones)
• Factory preset torque: smallest scale value (adjustable within measuring range with extra tool)
• Quick-change system: Rapidaptor quick-release
• Loosening torque: unlimited for slackening stuck screws

How to use

Select a compatible 1/4" hex bit and insert it into the Rapidaptor quick-release. Use the screwdriver for tightening until the preset torque is reached; the mechanism will slip or click at the set value to prevent further torque increase. To adjust the torque, use the appropriate tool (re-calibration kit available separately) within the permitted measuring range, and verify the set value with a torque tester. For loosening stuck screws, apply steady force—the unlimited loosening torque allows you to free fasteners without the torque limiting engagement.

What to consider before purchase

• Required torque range for your applications — the tool is factory preset to the lowest scale value and adjustable only within its measuring range
• Compatibility with 1/4" hex bits per DIN ISO 1173
• Need for rapid bit changes and ergonomic handle for repeated use

Usage recommendations

Use an off-the-shelf torque tester to verify calibration after any adjustment. Store the screwdriver in a dry environment and service or recalibrate periodically if used for critical torque-controlled assemblies.