Function - Made of high impact plastic. Can make edge-to-edge, T-shaped and edge-to-corner joints, ideal for drilling holes in woodworking and repairing wood joints. Quick Positioning - The quick dowel jig can be self-centered positioned on the boards for quick and precise joint positioning. Adjustable Position - The position of the baffle can be adjusted according to your needs, the adjustment range is 0-50mm and suitable for 6/8/10mm drill bits. Thickness - Can be used on boards up to 31mm thick and on boards up to 1 1/4" thick. Widely Used - Use for drilling wood, suitable for most woodworking hand drills and electric drills. Specification: Material: Plastic + Metal < p>Color: Yellow Use: Wood Drill Bit Drill Bit Brush: 6/8/10mm Punch Bit Size: 200 x 72 x 86mm Application: 1. Adjust the positioning scale to determine the distance between the first hole and the edge of the board. 2 After determining the position, choose the drill bit that matches the drill bushings and start