The ornamental design for tool size identifying magnet, as shown and described.
FIG. 1 is a perspective view of a tool size identifying magnet showing my
new design, the broken line showing of the wrench portion is included for
the purpose of illustrating environmental elements only and forms no part
of the claimed design;
FIG. 2 is a typical elevational view thereof, with the diametrically
opposed side being identical to the side shown in FIG. 2;