1、[Router Lift kit] Including 1 router lift base, 1 router table insert plate, 1 backer, 1 sliding ruler, 2 insert rings and other accessories, good helper for woodworking. 2、[46mm Lifting] The router lift base allows 0 to 46mm lifting, suitable for machines with diameter of 63.8 to 65.5mm, ensuring versatile use. 3、[Sturdy Construction] Made with ABS and aluminum alloy, this router lift system is sturdy and hard wearing, not easy to rust, ensuring durability. 4、[Clear Scale] The router table lift system will make precise drilling and installation of any router easier, with clear scale that is not easy to wear and tear. 5、[Wide Usage] This router lift is suitable for most electric trimming, engraving machines, ideal for wood milling, trimming, chamfering, slotting.