Features INDUSTRIAL STEEL MATERIAL: CNC spoilboard surface milling cutters select carbon steel material, which has higher strength and durability, and its service life is many times higher than that of No. 45 steel WIDE APPLICATION: The spoilboard surface milling cutter has a shank diameter of 8mm and can be used on table machines, hand machines or CNC machines BLADE DESIGN: The panel smoothing milling bit with notch is ideal for cutting tight corners. Thanks to the unique 2+2 blade design, the cutting floor has a smoother surface compared to traditional two-blade cutters INTERCHANGEABLE BLADE: The cutter features an integrated carbide blade with four cutting edges that allow the user to rotate the tool when one side becomes dull. You can also replace the cutter blade instead of replacing the entire drill bit MAIN USES: The cutter is used for resurfacing spoilers, planing large plywood and wood surfaces and finishing, as well as grooving for better performance, finer surface finish and better 90° angle clearance Function: 1. APPLICABLE SCENARIO: This cutter is ideal for leveling boards, cleaning floors and grooves. For CNC and other automatic milling machines as well as hand and table milling machines 2. HIGH EFFICIENCY AND RUSTPROOF: Insert cutter spoilboard cutter is locked with screws, large chip space, good chip evacuation, easy cutting, low milling resistance; The latest black Ti coating technology enables oil-free preservation and is durable without rust Specification: Item Type: CNC Spoilboard Surface Milling Cutter Material: carbon steel and carbide Shaft diameter: 8mm/0.31 inch Cutting diameter: 38.1 mm (1 1/2 inches) Cutting blade size: approx. 12 x 12 mm/0.47 x 0.47 inch Package list: 1 x CNC Spoilboard Surface Milling Cutter 1 x Storage Box Note: Please allow slight size errors due to manual measurement. Thanks for your understanding. Package List 1 x CNC Spoilboard Surfacing Router Bit 1 x Storage Box