Milwaukee PACKOUT 3pc Tool Box Kit. Part of the industry’s most versatile and most durable modular storage system, the Milwaukee PACKOUT tool boxes are constructed with impact resistant polymers and metal reinforced corners to provide up to 75 lbs of weight capacity and ultimate durability in harsh jobsite conditions. Featuring an IP65 rated weather seal to keep out rain and jobsite debris, and integrated organizers bins, the Milwaukee PACKOUT tool boxes are the best storage solution option. This kit consists of the Milwaukee PACKOUT 48-22-8424 Tool Box, 48-22-8425 Large Tool Box, and 48-22-8426 Rolling Tool Box. California Proposition 65 Warning. California Proposition 65 Warning Required. MFG Part # (OEM). PACKOUT 3pc Tool Box Kit.