Question

box - end wrenches
the box - end wrench is identified by two
ing shaped\ ends; each having 12 - points (double hexagonal) that embrace the shape of the bolt or nut. if force is applied to the wrench, one of the hexagons makes contact with the edges of the nut or bolt on all sides. the large number of contact points allows a relatively large transfer of force.
the box - end wrench has a different size on each end. the box - end is usually offset at a 15° angle to the handle, making the wrench easier to operate in confined spaces. size and shape of box - ends differ; there are straight, offset, double offset and \s - bend\ handle designs. this is usually the case with special tools designed to reach nuts and bolts in the most inaccessible places.
1
how is a box - end wrench identified?
both ends are the same size.
by
ing shaped\ ends.
each ring shaped end has 12 - points.

Explanation:

The text states that a box - end wrench is identified by two "ring shaped" ends, each having 12 - points (double hexagonal). It also mentions that the box - end wrench has different sizes on each end, so the claim that both ends are the same size is incorrect.

Answer:

B. By "ring shaped" ends.
C. Each ring shaped end has 12 - points.