The ornamental design for a handle for a papercutter, as shown and described.
FIG. 1 is a front, top and side perspective view of a handle for a paper cutter showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a side view thereof from the same side as in FIG. 1; and,
FIG. 7 is an elevation view thereof from the side opposite that in FIG. 1.
The broken line(s) immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design thereof.