Description: Material: This router bit is crafted from steel material, ensuring sturdy, wear resistance and sharp edges for accurate cutting Function: This professional bottom cleaning router bit is not only suitable for wood slab flattening, resurface or plane the top surface of the spoilboard, but also for trimming and slotting, grooving Feature: CNC spoilboard surfacing router bits with a total length of 42mm to handle various woodworking tasks efficiently Application: Ideal for use with solid wood, laminate, particle board, plywood compact panels, and acrylic Compatibility: Fits for CNC routers and other automatic routers, as well as handheld and desktop-mounted portable routers like woodworking engraving machines and trimmer   Specification: Material: Steel Size Chart: Length: 4.2cm/1.65inch 0.635cmx2.54cm/0.25inchx1.00inch 0.6cmx2.54cm/0.24inchx1.00inch Package Includes: 1 Piece CNC Spoilboard Surfacing Router Bits Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.