Was first produced in 1984
Wrench 8070 series covers 8069-8075.
The first series ERGO wrenches.
Grip surface on the shank is wider than the previous
wrenches.
Scale recorded on the
head.
Produced in phosphate or chrome-plated.
Chrome plated wrenches
have a C after the size designation.
1992
began
the manufacture
of
pipe wrenches
8072
P and
8073
P.
The moveable jaw
has one
face with a normal
surface and
one
face with a
serrated
surface.
The moveable jaw
can be
unscrewed and
turned so
that
the desired surface
turns
towards
the stationary surface
of the wrench.
Was
phosphate-coated or
chrome.
Chrome-plated pipe
wrench
becomes 8072PC and.
8073PC.