The graph below shows the vibration value against the maximum time the respective tool
may be used, per day.
It should be noted that if a tool is
used under abnormal, or unusual
conditions, then the vibration
level could possibly increase
significantly. Users must always
take this into account and make
their own risk assessment, using
the graph above as a reference.
Some tools with a high vibration
value, such as impact wrenches,
are generally used for a few
seconds at a time, therefore the
cumulative time may only be in the order of a few minutes per day. Nevertheless, the
cumulative effect, particularly when added to that of other hand held power tools that
may be used, must always be taken into account when the total daily dose rate is
determined.
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