Hand held power operated tools; hand-held tools, other than hand-operated; hydraulic tools; apparatus for use in the control of machine tools (pneumatic or hydraulic); apparatus for use in the control of machines (pneumatic or hydraulic); electric tools; apparatus for controlling the operation of machines (pneumatic); apparatus for the control of machines (pneumatic or hydraulic); apparatus for use in the control of machine tools (pneumatic or hydraulic); industrial control apparatus (pneumatic); industrial pneumatic tools; power operated tools for releasing threaded fasteners; power operated tools for tightening threaded fasteners