GOOD FIXABILITY: Our circular glass cutter has a fixed suction cup, which can help you hold the glass firmly. Precisely pressed rubber suction cup, durable. FUEL TANK DESIGN: It adopts fuel tank design to automatically fill oil, which is more convenient to use. High hardness alloy cutting wheel, easy to cut. WITH CALIBRATION SCALE: can accurately adjust the cutting hole size. This glass circle cutter can cut precise circles. It is specially designed for enthusiasts and professional glass cutting machines. ROUND HANDLE: Its round, compass-style handle fits the palm very well and is comfortable to hold. It is very suitable for cutting glass art, crafts and home use. EASY TO CUT: Its cutting range is a round hole with 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 are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.