Good fixability: Our circular glass cutter has a firm suction cup, which can help you hold the glass firmly. Precisely pressed rubber suction cup, durable. FUEL TANK DESIGN: The fuel tank design adopts automatic oil filling, which is more convenient to use. Cutting wheel made of high-hardness alloy, easy to cut. WITH CALIBRATION SCALE: Can accurately adjust the size of the cutting hole. With this glass circle cutter, you can cut precise circles. It is specially designed for enthusiasts and professional glass cutters. ROUND HANDLE: The round, compass-style handle fits the palm of your hand very well and is comfortable to hold. It is ideal for cutting glass art, crafts, and home use. EASY TO CUT: The cutting range includes a 10 mm round hole and a diameter of 13.5 to 60 cm. The scale is clear, the diameter of the glass is adjustable, and it is easy to cut. Note: The data is all measured manually, please allow an error of 1-3 cm due to differences in light and display. There will be a