Wera 7870 Joker M Self-setting Insert Spanner 13-16 mm, 9x12 mm Square Drive





Square head insert tool 9x12 mm

For torque wrenches from the Click-Torque X series & X-Power Actuator with 9x12 mm mounting 

or hexagon screw heads and bolts with wrench sizes 13.0; 14.0; 15.0; 16.0 (metric)

For hexagon screw heads and bolts with wrench sizes 1/2"; 17/32"; 9/16"; 19/32"; 5/8" (imperial)

With mechanical ratchet functionality for fast and consistent screwdriving without removing the spanner

Return angle of only 30° when using the corner-width rectangular prisms in the jaw

The laser-engraved, abrasion-proof QR code makes it easier to determine the correct torque value depending on the torque wrench and insert tool used




Torque Advisor

The laser-engraved, abrasion-proof QR code makes it easier to determine the correct torque value depending on the torque wrench and insert tool used. Simply scan with your smartphone or tablet (if available, both QR codes: torque wrench and insert tool). A website opens automatically which recognizes the scanned tools (no app needed!). Then enter the required torque value; the corrected value is determined automatically. No need to use formulas/calculations.


Drive 9x12 mm

For torque wrenches from the Click-Torque X series with 9x12 mm mounting.


Automatically and continuously self-setting

With its automatically and continuously gripping parallel jaws, the 7870 Joker covers all dimensions within the potential operative range. The tool finds the required size by itself when attaching it to the bolt or screw.


Joker 7870: gentle to the screw

The parallel, smooth jaws of the 7870 Joker offer a seating stress and can thus prevent the nut or screw head from rounding, which can occur when power is transmitted over corners.


Joker 7870: ratchet mechanism for quick working

The ratchet feature in the jaw ensures fast and consistent screwdriving without removing the tool.


Joker 7870: low return angle

The corner-width rectangular prisms in the jaw allow a return angle of only 30°.





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PLEASE NOTE: The postage prices listed are for UK Mainland (Zone A and U - excluding Scottish surcharge areas and Ireland) only. Please contact us for a delivery cost if you are outside UK mainland. Items are available for collection from Saracen Distribution Ltd at our Herefordshire showroom if required.


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We will always  endeavour to provide as much product information on the product page to aid you in making the correct purchase. However, there is always the possibility that the product isn't quite what you were looking for, or you might have ordered the wrong size.


If an item needs to be returned we offer a 30 day returns period from the date of purchase.

A full refund can only be given if we receive the item back in the same condition it was dispatched in.

You will have to arrange the return of the goods yourself and we advise that this is sent on a tracked service.

If delivery is refused we retain the right to charge you the cost of having the delivery returned to us.

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We can offer a collection for the item(s) at a charge of £15.99 per collection. For collections from remote locations or outside the UK and larger/heavier item(s) the collection fee will be priced on application.

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