【Accurate and Easy Drilling】The drilling jig and hinged drilling jig are now equipped with stainless steel positioners for precise alignment when drilling various surfaces. You can easily find the center of the board edge every time and drill evenly spaced holes along the entire length of the wood. 【Suitable for All Drilling Needs】With a maximum drilling thickness of 45mm board and 8 aperture specifications ranging from 3mm to 10mm, this drill guide jig is suitable for all drilling needs. 【High Quality Material】Drill guide made of highly durable aluminum alloy, the surface is anodized, high durability and corrosion resistance, not easy to rust. 【Easy to Clean and Store】The grooved design for discharge dust allows for quick and easy cleaning. This doweling jig can be cleaned and stored in a closet, taking up little space and easy to use. 【Wide Application】This self-centering doweling jig is ideal for woodworking enthusiasts, builders, carpenters, engineers and hobbyists. It is precise,