Abstract: A modular storage container including a drawer configured to be received into and contained by a housing. The housing consists of two identical molded units that are joined and fastened together by a guide bracket. The guide bracket also functions to position the drawer within the housing. The drawer slides within the housing on a drawer glide which interfaces with the guide bracket of the housing. Two sets of ridges are disposed on outer surface of the base of each molded unit. When two or more containers are stacked, the ridges on the top of the supporting container will interdigitate with the ridges on the underside of the mounted container to align the containers squarely atop each other and to inhibit longitudinal and lateral movement of the stacked containers. Each container has a drawer lock for security.