Festool Systainer SYS-Combi 3. The SYS Combi expands the range of customizable and efficient storage and mobility solutions. Customize your tool storage by putting tools, accessories, etc in one single Systainer. You can put your tools in the top Systainer storage bin and then put the related consumables such as sandpaper, blades, tenons, etc to be organized and stored in the bottom drawer. These work with both classic latch style Systainers as well as new T-Loc style systainers. Connect to related tools, set into the SYS Cart, SYS Roll, and even your CT Dust Extractor for complete modular storage and mobility system.