General description The 30mm to 200mm Adjustable Circle Hole Saw Kit is designed for precision cutting in woodworking and home improvement projects. This versatile tool allows for clean cuts with adjustable diameters ranging from 30mm to 200mm, making it suitable for various applications. 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