Smoothing cut glass made from wine bottles
Sand down the edges with 150-grit, 220-grit, 320-grit, then finally 400-grit sandpaper to make your glass even smoother. Then, use 1000-grit and 2000-grit sandpaper to polish the edge to perfection. Wipe the edge of the glass with a clean damp cloth once you've finished sanding to wipe away any leftover grit or dust.