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Micro - Grain Solid Carbide Pyramid Graver CNC Carbide Bits For Cutting Wood, Laminate, Artificial Stone, Plastic Description: Bits are made of micro-grain solid carbide, Produced by Walter CNC grinding machines. OEM and ODM are available Applications: For fine carving materials such as steel,copper,aluminium,acrylic,etc. Specifications: Competitive Advantage: 1): Micro-grain carbide tips to make sure bits sharp and durable. 2): Cutting surface is finished, without burrs and