Professional Glass Cutting Tools We are committed to providing the most professional and qualified products for all our customers. All our products are well inspected before shipping. The cutting tools not only bring you convenience, but also allow you to enjoy more fun in your life. In addition, your children can also participate in DIY glass making. Step 1: Turn the joint by connecting the head of the glass cutting tool with the handle, pull it down, and add the glass cutting oil. (Note: Keep all parts well). Step 2: Gently slide it on paper, or gently turn the pulley to check if there is an oil line. Please make sure that the glass cutting tool is properly filled with oil. Step 3: Before starting, make clear marks on the pieces to be cut with a ruler or a colored pen, and select the appropriate thicknesses and sizes (2-6/6-12/12-20 mm). Then, place the cutting tool on the glass and cut along the marked positions. Step 4: When there are crescent marks on the glass, hold the top