EURO Uniguide - drawer guide locating tool. For installation of all brands of drawer slides. Constructed to 0.005" tolerance for accurate positioning. Infinite vertical adjustment. Installs 1 to 4 regular or full extension slides with no layout marks required. Each set comes with aluminum guide rails and four polycarbonate templates attached with thumb screws. Each template has a slot to accomodate a ceramic composite drill guide bushing which can be located anywhere within the range of the slot.Note: Designed to be used with self-centering drilling tool, bits sold separately