FIG. 1 is a front perspective view of the garden tool handle; FIG. 2 is a back view of the garden tool handle; FIG. 3 is a front view of the garden tool handle; FIG. 4 is a left side view of the garden tool handle; FIG. 5 is a right side view of the garden tool handle; FIG. 6 is a top view of the garden tool handle; and, FIG. 7 is a bottom view of the garden tool handle.