General description The 30mm to 200mm Adjustable Circle Hole Saw Kit is designed for clean and precise cutting in various materials. With an adjustable aircraft-type design, this hole cutter allows for diameters ranging from 30mm to 200mm, making it versatile for different projects. Technical specifications Diameter range: 30mm to 200mm Material: Alloy steel Design: Double blade for smooth and burr-free cutting Usage Ideal for carpentry openings Suitable for headlight openings Can be used for plastic panel openings Perfect for DIY speaker openings