Each type of LOW hollow torque wrench power has a set of
working head corresponding to it, they cover this type of power
head that can provide all sizes of bolts within the torque range.
When selecting the appropriate working head for the bolt, note
that the distance between the bolt and the wall is greater than
the distance between the hexagonal edge of the working head
and the outer edge of the working head. Pay special attention to
whether there is enough space between bolt and bolt. The R and
A in the following table can help you choose the right head.
Adjustable casing cooperates with LOW series working head,
so that a single working head can match multiple bolt size, which
can greatly improve the adaptability of different conditions.