Feature:1. Professional 360 rotary roller type glass cutter compass can inject oil, high precision and durable.2. High hardness alloy cutter wheel designed to cut neat section with high working efficiency.3. Builtin bearing allows the cutter head to rotate 360 degree.4. The cutter head can be fixed at any position of the metal rod marked with scales so you can precisely adjust the cutting diameter as needed.5. Full metal components, sturdy and durable.Specification:Item Type: Glass Circular CutterCutting Thickness: 2-10mmMaximum Cutting Diameter: 40cmPurpose: Glass hole cutter, kitchen ventilator hole, air conditioning hole, etc.Package List:1 x Glass Cutter Base1 x Oil CanNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.