Edge Guide for Rockler Drill Guide Edge Cutting Guide for Dog Holes, Shelf Pin Holes, Shaker Pegs – Plastic w Structural Ribbing Drill Accessories AEVVV 🎨【24 VIBRANT COLORS】 PAINT MARKERS Size:125PCS 🎨【24 VIBRANT COLORS】 PAINT MARKERS Car repair workshop you can substitute wooden dowels for the guide bars Center Hole Drill Guide Features: Designed specifically for the Rockler Portable Drill Guide (sold separately) Makes it easy to drill repeated holes the same distance from the edge of your work – Our hole angle drilling guide is made from durable plastic with structural ribbing for strength Rubber pads on the underside of base and edge of guide protect the workpiece and provide a non slip grip Brass thumbscrews make our woodworking tools & accessories easy to lock in desired drilling distance Included 1 4'' x 12'' aluminum guide bars allow drilling 1 3 4'' to 8'' from the edge If more distance is needed from the edge