Milwaukee PACKOUT Rolling Tool Box. Part of the industry’s most versatile and most durable modular storage system, the Milwaukee PACKOUTT 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 PACKOUTT rolling tool box is fully compatible with all Milwaukee PACKOUTT modular storage products. Industrial grade extension handle. IP65 Rated weather seal. Metal reinforced locking point. Mounting location for the one key tick. California Proposition 65 Warning Required. MFG Part # (OEM). (1) PACKOUT Rolling Tool Box, 1 Tray. Storage & Organization Type.