Glass Bottle Cutter, AGPtEK Bottle Cutter Cutting Machine, Wine Bottles Beer Bottles Cutter Glass Cutter Cutting Tool Super Easy and Convenient: Check the detailed description below. The bottle cutter features sharp blades to cut perfect score line. Take 4 STEPS to make your own artwork. Cut Any Straight Round Glass Bottles: The length/height slide adjustment for making the cut is 2" to 8.3"(leaving you with cup 2" on up to 8.3").The width spread between the cutting die and support roller is 0.5 to 2. Smoothly Cutting: The results will amaze you,clean breaks nearly every time.The cutter owns 3 cutting blades in a disc, each blade is made of sharp and hard metallic steel. Long Lasting: The durability has been tested by 50000 times cutting and still works great.Even thick champagne bottles break easily and smoothly. Helpful Hints: You may can't get a perfect cut at the fist use,so we have the E-BOOK for you to read. If you have any further questions, we are always here to solve your problems. Adjust the backstop for cutting length. Adjust the rear rollers for cutting width. Adjust the front roller and cutting wheel, and align the front roller and  cutting wheel  with  the rear rollers horizontally. Adjust the blade by screwing the cutting wheel adjusting screw. Make sure the blade is perpendicular to the glass at all times. Use a round, smooth bottle with parallel sides and select the location for the desired cut. Then adjust the backstop to this length and place the bottle on the machine as shown. Rotate the bottle toward one direction with two hands. Keep it rmly against the backstop and keep it moving while you&#039;re making the etching. Rub the inside and outside edges lightly with a piece of coarse polishing paper. Sprinkle a small amount of the polishing powder on a at, hard surface. You can also use a glass or metal pie plate or a piece of window glass. Dip the edge of the glass in water and then place it on the polishing surface. Start to grind in a circular motion. After a short time, the edge of the glass will become perfectly at and have a dull, gray appearance. Again, smooth the inside and outside edges with the polishing paper.