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Torque wrench “Safe-Torque A 1” with 1/4 inch square drive and scale, maximum torque: 12N·m
Article no.: 657770 12
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Article code:
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For right-hand and left-hand threads.
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For 1/4 inch sockets.
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Easy adjustment of the torque value.
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Torque lock function.
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Small backswing angle.
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Overslip mechanism prevents excessive torques from being applied.
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For a description of the legend, see description text.
- Direction of tightening: For right and left-hand tightening
- Torque measuring accuracy: ± 10
- Test certificate: Manufacturer’s test certificate
- Square drive: 1/4
Offers
Product details
Technical Data
| Manufacturer's designation | Safe-Torque A 1 | |
| maximum torque | 12 Nm | |
| Direction of tightening | For right and left-hand tightening | |
| Torque measuring accuracy | ± 10 % | |
| Test certificate | Manufacturer’s test certificate | |
| Series | Safe-Torque | |
| Overall length L | 244 mm | |
| Head width b | 31.6 mm | |
| Head height h | 23.7 mm | |
| Torque range | 2 Nm - 12 Nm | |
| Torque range | 2 lbfft - 9 lbfft | |
| Scale graduation, 1 graduation = | 0.1 Nm | |
| Weight | 553 g | |
| Square drive | 1/4 inch | |
| Display | analogue | |
| Release signalling | acoustic; haptisk | |
| Trigger principle | mechanical slip clutch | |
| Connection format | Push-through square drive (ratchet) | |
| Measurement technology | mechanical | |
| Slipper function | yes | |
| Quick release/ quick-change function | no | |
| Memory pointer | no | |
| Data can be recorded | no | |
| Setting the trigger value | with adjustment scale | |
| Feedback | triggering | |
| Reversible reading | Nm; lbfft | |
| Measurement process | Torque | |
| Adjustable trigger value | adjustable | |
| Standard | DIN EN ISO 6789 | |
| Type of product | Torque wrenches |
Identification & Classification
| Article number |
657770 12
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|
| EAN / GTIN |
4013288223012
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|
| Manufacturer number |
05075800001
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|
| Manufacturer/responsible person | Wera Werkzeuge GmbH, Korzerter Straße 21-25, 42349 WUPPERTAL, Germany, www.wera.de |
Description
Version:
The special slipping trigger mechanism reliably prevents unintentional overtightening. Desired torque value is easily set and saved as the user can hear and feel the device engage upon reaching the scale value. The 72 fine-pitched teeth enable a low return angle of only 5°.
With 1/4 inch square drive.
With 1/4 inch square drive.
Advantage:
Torque lock function: The torque function can be switched off – the tool can therefore also be used as a standard ratchet with high release torques and for applications involving defined rotational angles.
Function:
On reaching the set torque value the wrench triggers a clearly detectable deflection and is then immediately ready for use again. The overslip trigger mechanism ensures that the set torque values are not exceeded.
Standard:
Tested to DIN EN ISO 6789.
Cutting data:
Legend for drawing and formula:
l1 = Lever length without plug-in head
l2 = Adjusted reference dimension on the torque wrench
l3 = Lever length including factory calibration reference dimension
l4 = Reference dimension of the plug-in head
L = Total length of the tool
T1 = Torque to be set
T2 = Specified torque
l1 = Lever length without plug-in head
l2 = Adjusted reference dimension on the torque wrench
l3 = Lever length including factory calibration reference dimension
l4 = Reference dimension of the plug-in head
L = Total length of the tool
T1 = Torque to be set
T2 = Specified torque