Milwaukee Tool 48-22-8426 Part of the industrys most versatile and most durable modular storage system, the Milwaukee PACKOUT rolling tool box is constructed with impact resistant polymers, an industrial grade extension handle, 9 in. all terrain wheels and metal reinforced corners to provide up to 250 lbs of weight capacity in harsh jobsite conditions. Featuring an IP65 rated weather seal to keep out rain and jobsite debris, the Milwaukee PACKOUT rolling tool box is fully compatible with all Milwaukee PACKOUT modular storage products.