The ornamental design for a band saw, as shown and described.
FIG. 1 is a perspective view of a band saw showing our 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 view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a perspective view thereof with the battery attached; and,
FIG. 9 is a perspective view thereof with the bumpers attached.
The broken lines illustrate portions of the band saw that form no part of the claimed design. The broken lines showing a battery in FIG. 8 and bumpers in FIG. 9 are for the purpose of illustrating environmental structure, and form no part of the claimed design.