Check the listing for details. Circular Glass Cutter Circle Cutting Tool 40cm Diameter Adjustable. Condition: New. Listed at 27.99 USD. Oil Filling reservoir Design Metal Scale Bar Cutting Circle Range: 40cm ( Maxium) Cutting Range: 3mm - 10mm thickness 6 Pcs of Tungsten Carbide cutting wheel Package included: 1 x Circled Glass Cutter - Does the suction cup work on textured stained glass? A: Always cut the flattest side of the glass. The suction cup is a little over 2 inches across and may not grab glass with grooves preventing suction but you should be able to tape the suction cup down if needed and still cut circles from 3 inches to 16 inches in diameter. Note this comes with metric markings Has anyone tried cutting a hole in a wine bottle with this? A: I thought about cutting a hole in a wine bottle but I think it would be pretty tricky, you could do it but it would be difficult because it needs a flat surface to stabilize it. I bought this to cut a hole in the bottom of a glass decanter and I gave up (probable because I lack patience) but it was moving around a lot Suction cup dia is 2.2 in. (5.5 cm), but what is the smallest diameter I can cut ? I need to cut a 2.3 - 2.4 inch hole in a mirror. (5.8-6.2 cm). A: Smallest diameter you can cut is 2 1/2 in Is the measure in American or metric? A: Metric