Features: Selected from aluminium, it has more toughness, oxidation resistance and wear resistance than single metal. It is not easy to break, scratch and deform, durable. Suitable for 90° angle engraving when cutting, planing, grinding thinner materials, gluing and welding. Our 90° angle design guide Sawing is fitted with a safety catch to help you secure right-angle guides for fast and accurate setting of slicing and milling angles. Can be used with your electric circular Sawing for a perfect engraving experience. Easy to set up and take down for precise cutting. Just a few steps to set up, no need for complicated steps. Specifications: Component:Aluminium Size:Approx.340x108mm/13.38x4.52inch Package Includes: 1Pc Track Sawing Guide Rail Square note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.