FIG. 1 is a perspective view of a pivotal wrench head showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is an alternate perspective view thereof showing my new design in an exemplary environment.
The broken line showing of the environment in FIG. 8 is included for the purpose of illustrating and forms no part of the claimed design.