Wera Torque Screwdriver Set - 7440/41/42
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AmazonWera 7440/41/42 Adjustable Torque Screwdriver Set, 27PC - 05074739001
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eBayWera 7440/41/42 27-Piece Kraftform Adjustable Torque Screwdriver Set
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WERA 05074739001 Screwdriver£13.00 delivery£866.17Visit shop →
Wera 7440/41/42 Torque Screwdriver And Bit Set£5.95 delivery£323.95Visit shop →
Wera 7440/41/42 Torque Screwdriver And Bit Set£5.95 delivery£323.95Visit shop →
Rapid Online - Rapid Electronics Ltd.Wera 05074739001 7440/41/42 27-Piece Kraftform Adjustable Torque S...
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Product Information
Full details
The Wera 7440/41/42 Torque Screwdriver and Bit Set is a professional-grade precision kit designed for technicians, engineers, and hobbyists who require exact torque control for delicate electronic or mechanical assemblies. This 27-piece collection offers a versatile torque range of 0.3 to 6.0 Nm, preventing damage from over-tightening while ensuring fastener security. While highly effective for precision work, users should note that it is intended specifically for torque-controlled fastening and is not a replacement for heavy-duty impact drivers.
All features
| Model Part Number | 7440/41/42 |
|---|---|
| Brand | Wera |
Extended Product Information
FAQs
Does this set include a calibration certificate?
While the tools are factory-calibrated for high precision, specific calibration certificates depend on the individual retail package contents.
Can I use these drivers to loosen stuck screws?
Yes, the tools are built to handle high manual torque for loosening, but always ensure you are within the tool's physical limits.
Are the bits magnetic?
Yes, the Rapidaptor chuck and bit system incorporate magnetic holding force to keep fasteners secure.
What is the maximum torque capacity of the pistol-grip driver?
The set covers a range up to 6.0 Nm, with the pistol-grip designed to make applying the higher end of that range more ergonomic.
Can I use bits from other brands?
Yes, as long as the bits are standard 1/4-inch hex drive, they will work with the Rapidaptor chuck.
Troubleshooting
Torque setting dial is difficult to turn
Ensure no debris is lodged in the adjustment dial; if it persists, ensure you are not applying side-load pressure while turning.
Bit will not lock into the chuck
Check the Rapidaptor sleeve for debris and ensure the bit shank is clean and free of burrs.
Screwdriver feels inconsistent
Verify that you are using the correct driver for the required torque range; the ranges overlap, but performance is optimized near the center of each tool's specific scale.
Pros and Cons
Pros
- High accuracy with +/- 6% tolerance
- Ergonomic handle reduces long-term strain
- Excellent selection of high-quality bits included
- Tool-free, intuitive torque adjustment
- Organized, portable storage case
Cons
- Not designed for high-impact force applications
- Calibration may require periodic professional verification
- Storage case is plastic rather than heavy-duty metal
Setup, Compatibility & Care
To begin using the set, select the appropriate driver for your desired torque range. Adjust the torque by turning the dial at the base of the handle until the indicator aligns with the desired value on the scale.
Compatibility: These drivers are compatible with standard 1/4-inch hex bits.
Care Instructions:
- Keep the bits clean and dry to prevent corrosion.
- Store the drivers in their designated spots in the plastic case to prevent the internal adjustment springs from getting knocked out of calibration.
- Avoid dropping the screwdrivers, as mechanical shock can affect the precision of the torque settings.
- Wipe the handles with a damp cloth if they become soiled; avoid using aggressive chemical solvents.