Convenient Containers. Festool has upgraded its stackable carrying cases by replacing the old thumb-busting latches with easy- to-turn knobs that open, close, and connect boxes. T-Loc Systainers can be opened while connected to one another, so you don’t have to dismantle an entire stack to get at a tool on the bottom. The new cases are compatible with older Systainers. Currently a limited number of Festool products leave the factory in T-Lock Systainers. Prices for empty Systainers range from $60 to $82. Tooltechnic Systems, 888/337-8600, festoolusa.com.