After the router arrived, I sat down at my CAD terminali with digital caliper and modeled this router screen. This exercise led to the conclusion: If using this cutter on 1 1/2 inch thick material, place the workpiece on the router table and position it in contact with the cutter, adjust the height of the cutter until it is flush and is level with the top of the workpiece. Now raise the drill bit 1/32". You are now set for the best gauge for 1 1/2" material. The two bottom knives did not give the exact distance between the knives like the two top knives did. Using this cutter on 2x8, 2x10, 2x12 (etc.) boards can and will result in unsatisfactory joints due to the width of the board, usually resulting in warping or indentation. factory condition. Connection density and looks are average at best. On the other hand, you can use this cutter to create tight and stable joints with an accurate and flat workpiece.