1、Multi Function: This guide rail system helps you align saws, guide the wood when sawing, ideal for planer, molding machine, table saw or wood picker. 2、Aluminum Alloy Made: The guide rail of the circular saw is made of aluminum alloy, which is high in strength, hard wearing, ensures years of use. 3、Precise Scale: The scale is laser engraved, so you can read the measured values clearly, and they will not get dirty, fade or disappear. 4、Reasonable Design: The back plate is smoothly without stuck, and the slicing is smoother during operation to improve efficiency. The lock is designed to fix the slicing distance with one key to reduce operation errors. 5、Easy to Use: The limit block can be easily adjusted, the screw contact area is large, the wrench can pass through the preset position of the screw, and the track will not be pressed out during operation.