Article no.: 657410

Torque wrench base unit 40 Nm

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on request
128 pieces in stock
Brand: Stahlwille®



Single-handed torque wrench without a setting scale. Wrench setting using torque analyser. Left-hand tightening by reversing the plug-in head.
Without plug-in head (base model); see No. 657582657590 for suitable plug-in heads.


On reaching the set torque value the wrench triggers giving a “signal”(audible and perceptible) and is then immediately ready for use again.


For controlled screw tightening etc. to specified torques in batch productions.


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


The guaranteed measuring accuracy of the torque is achieved only once the torque range has been calibrated to DIN EN ISO 6789.

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