Made of impact-resistant plastic. With side-by-side, T-shaped, and side-by-side joints, it is very suitable for drilling and repairing wood joints in woodworking. Quick Positioning - The quick dowel clamp can be self-centered on the board to achieve quick and accurate positioning and connection. Adjustable Position - The position of the baffle can be adjusted as needed. The adjustable range is 0-50mm, suitable for 6/8/10mm drill bits. The thickness can be used for boards with a thickness of no more than 31mm and boards with a thickness of no more than 1-1/4". Widely used for drilling wood, used for most woodworking hand drills and electric drills. Specifications: Material: Plastic + Metal Color: Yellow, Blue, Green, Black (Optional) Use: Woodworking Drill Bits Brush: 6/8/10mm Perforation Size: 200 x 72 x 86mm How to use: 1. Adjust the positioning scale to determine the distance between the first block and the second block and the edge of the board. 2. After fixing the position, select the drill bit corresponding to the drill guide to start drilling. 3. After drilling three holes, remove the nuts from the scale. 4. Use the positioning pin to fix the hole on the third hole (make sure the distance between each hole is the same). 5. Drill all holes straight. Contents: 1 x Woodworking The delivery color is subject to the first main picture Shop tips: 1. The size is measured manually, please allow the error (1-3 cm). 2. Due to the different monitor pixels, there may be some color difference, please refer to the actual product.