[Cutter Size] Shank diameter 8mm, 3 sizes: Blade diameter 35mm, 38mm, 50mm. [Premium Material] Made of hard alloy steel, high hardness. Heat-treated blade is sharp and smooth. Coated surface provides rust resistance and extended service life. [Widely Used] 45-degree miter cutter designed for wooden doors, windows, drawer floors, and mitre or parallel joints. Suitable for compact wood, MDF, chipboard, and plywood panels. [Applicable Machines] Carving tool compatible with 8mm shaft diameter. Fits routing tables, woodworking engraving machines, portable CNC routers, and table-mounted router setups. [Router Bit Design] Features a 45-degree locking miter design for precise angle processing. High shear hook geometry ensures smooth cutting performance. Includes bearing-guided system for accurate tracking. Specifications: - Material: Tungsten Carbide Alloy - Case Material: 45 Carbon Steel - Shank Diameter: 8mm - Cutting Diameter: 35mm, 38mm, 50mm (1-3/8", 1-1/2", 2") - Total Length: 51.5mm, 53mm, 62.5mm - Quantity: 3 Pieces - Type: 45 Degree Lock Miter Router Bit Features: Durable and sturdy construction. Blades undergo heat treatment and feature a heat-resistant Teflon coating for smooth, sharp cutting edges. The 45-degree locking miter design allows quick creation of strong miter joints, enabling two wooden pieces to be securely joined at 90 or 180 degrees. Package Content: 3 Pieces 45 Degree Miter Cutter Note: 1. Intended for industrial wood cutting and engraving only. Store in packaging when not in use. 2. Suitable for compact wood, chipboard, MDF, and plywood. Do not use on ferrous metals, steel, sand, or non-wood materials. 3. Always wear appropriate eye protection to prevent injury from wood chips. 4. For high-hardness materials, consider using 1/2 inch or 12mm shank versions.