784 has 25 holes spaced 32mm on center and 37mm from the edge. Measures 92mm (3-5/8") x 800mm (31-1/2"). Can be used to make 5mm or 1/4" shelf pin holes with appropriate bit. For drilling get either the 6512 (5mm) or 6516 (1/4") self-centering brad point drill bit. For routing get either the 15202 (5mm) or 15204 (1/4") upcut spiral bit and the 5020K 3/8" OD guide bushing/locknut. Includes a 5mm & 1/4" locating pin to reposition the jig precisely on any length part. This jigs longer length lets you use it on taller cabinets without having to reposition it as frequently. Choose between drilling or routing the shelf pin holes. Drilling is easiest if your cabinet is assembled. Routing is faster and produces a slightly cleaner/squarer hole on unassembled parts.