For Durable Diamond Coating: Each hole cutter is crafted with a diamond-coated edge that enhances durability and cutting efficiency, allowing for smoother operation and longer tool life. Versatile Cutting Range: The Diamond d rilling machine Kit includes 15 pieces of hole cutters ranging from 4mm to 83mm, making it suitable for a wide variety of materials such as glass(Except tempered glass), tile, porcelain, marble, and granite.
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