The ornamental design for a multi-bit ratchet screwdriver, as shown and described.
FIG. 1 is a front perspective view of a multi-bit ratchet screwdriver according to the present invention illustrating the top, front, and right sides of the multi-bit ratchet screwdriver. The left side of the multi-bit ratchet screwdriver is a mirror image of the right side as illustrated.
FIG. 2 is a front elevation view of the multi-bit ratchet screwdriver of FIG. 1.
FIG. 3 is a rear elevation view of the multi-bit ratchet screwdriver of FIG. 1.
FIG. 4 is a bottom plan view of the multi-bit ratchet screwdriver of FIG. 1; and,
FIG. 5 is a top plan view of the multi-bit ratchet screwdriver of FIG. 1.