Three is a magic number when it comes to motorcycles and socket sizes, so the new PackWrench from CruzTOOLS in the USA could be one of the most versatile items to carry around. CruzTOOLS noticed that many vehicles could be almost stripped and rebuilt with only three socket sizes: 8, 10, and 12mm. So they created the PackWrench, which features all three sizes in a compact T-style wrench that's small enough to fit into a bum-bag, tank bag or under the seat.