WERA C-SERIES REVIEW - BY PETER BRETT
use in cramped spaces.
A solid oval tube painted in Wera Black conceals the inner workings of the ‘click’ part of the Click Torque mechanism – of which more below.
Then comes the user interface: the setting scales. These are marked in Nm on the right side of the line and in lbs/feet on the left. The scales are in black lettering on a white background so are clear to see. Although the lbs/feet scale is a bit smaller and I needed my glasses.
The Nm scales are marked in 10Nm graduations and each in-between increment is clearly visible in a separate window. To adjust the torque settings you have to head past the large Wera Kraftform handle to the button on the far end of the wrench.
The button has to be pulled out and this enables the handle to be turned. The design of the handle is excellent because the grippy patches not only help when applying torque, they also make it easy to twist it to set the scales.
The window below the scales provide individually click-stopped numbers from 0 to 9. A full turn of the handle moves the scales exactly 10Nm and the 0 marks the exact spot for a 1Nm measurement. An audible and tactile ‘click’ allows each incremental change to be clear to the user.
It is easy to work out if you wanted to set 45Nm, you set the scale to 40Nm and then turn the handle five clockwise click-stops.
In my opinion, the click-stop system is very accurate, and is easily repeatable
@ToolBUSINESS TBH October, 2018 11
should you need to change settings often.
To lock the wrench settings so they will not move in use, the button on the end of the handle is simply pushed down.
Click – Torque is a brilliant feature of this series of wrenches. On many older- styled torque wrenches, the torque’s indication target was reached when the head would give an audible click as the mechanism slipped.
However, if the user continued applying torque the likely result was a higher torque to that set on the wrench.
With the Click – Torque there is not only the audible signal to notify the user the target torque has been reached, but there is also a cam mechanism inside the handle to give a tactile click, which can be felt in the hand as it escapes the spring. This double signal means the user can immediately realise target torque is reached and can release pressure on the handle.
Not all torque settings are in traditional ‘righty-tighty’ screw threads, and Wera has therefore ensured the C-Series provides controlled tightening to the left and right.
So, will the C-Series catch on?
One of my usually infallible tests for finding out whether a tool will be a success or not is to lend it to the appropriate trade and then wait to see how long till you get it back.
In this case, deadlines being quite tight, I had to prise this wrench away long before the young motor technician to whom I lent it wanted to part with it.
He most liked the easy setting and overall quality of it, especially since he was having to reset torque readings several times a day. To my mind a slick summary of this wrench’s best points.
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