This tool can save you hours of time if you need to cut the same size glass repeatedly. Use it to cut thick or thin borders, rectangles, squares, diamonds, or other straight-edged shapes. With the Glastar Stripper and Circle Cutter you can cut strips from 1/2" to 12" wide. In addition, the Circle Cutter scores perfect circles from 3" to 25" in diameter. The multi-wheel cutter, or turret, contains six high-quality cutting wheels. Replacement turrets available. Comes with instructions.