Description Made of impact-resistant plastic. With side-by-side, T-joint 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 fast and precise positioning and connection. Adjustable position - The position of the deflector can be adjusted as needed. The adjustment range is 0-50mm, suitable for 6/8/10mm drill bits. The thickness can be used for cards with a thickness of no more than 31mm and cards with a thickness not exceeding 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 scale of positioning 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 locating pin to fix the hole on the third hole (make sure the distance between each hole is the same). 5. Drill all holes straight. Sold by Briday Store