1、Template Wiring: The bottom knife is very suitable for wiring the door hinge mortise using the hinge template, and all types of template wiring can be easily performed using the equipped shank bearing. 2、Alloy Blade: The bottom knife is heat treated with high quality alloy blade, which is pointed and durable, precise and balanced, and runs smoothly. 3、Backlash Resistance Design: The cutter with backlash resistance design can smoothly cut into the original material, producing clean and free of debris. 4、Application: The bottom knife can be used to cut dense panels of wood, particle board, and plywood, avoiding cutting metal. 5、High Wear Resistance: The bed knife can provide higher strength and maximum resistance, and has the advantages of high wear resistance and long service life. 4 x Milling Cutter4 x Storage Box Item Type: Template Router Bit SetMaterial: Main Body Carbon Steel + Bit AlloyShank Diameter: 1/4inDiameter of Cutter Head: 3/4in, 5/8in