【Fixed Suction Cup】With a fixed suction cup, you can firmly hold the glass. 【Automatically Filled】With oil tank, , it can be automatically filled with oil, making it easier to use. 【Accurately】The calibrated scale can help you accurately adjust the size of the cut hole. 【Easy Cutting】High hardness alloy cutter wheel for easy cutting. 【Widely Application】Cutting range is a circular hole with a diameter of 13.5-40cm., Weight: 0.3968320716 pounds, Manufacturer: Walfront