The Festool 42" Hole Guide Rail is not only a guide rail to ensure straight cuts, but is also a hole template that will allow you to drill perfectly spaced holes. It features a hard anodized surface with non-slip coating, and prevents delicate plywood veneer from chipping. Simply lay the guide rail on the workpiece and align the splinter guard flush with the scribe line. Now, place your Festool plunge cut saw on the guide rail. The guide rib on the rail engages the guide slot on the tool, ensuring precision cutting every time. You save time and money by eliminating laborious measurements, rework and wasted material.