Glass Cutter, Plastic Cutting Tool for Glass Tubes, Maximum Diameter 45mm, Pipe Cutting Tool

It is a very practical device. In the good old days, we use to mark the tube with a file, add water to reduce the surface tension, say a prayer and wink. The glass cutter can be used for teaching or personal use, you should be careful to avoid cutting yourself when using. If the head which is worn needs to be replaced, so as not to affect the useThis pipe cutter is designed to mark the circumference of the pipe. It will mark borosilicate and flint glass, producing a very clean break. Glass tube diameter can be cut to (approximately) 4.5cm. Please note that the item could not cut the glass tube totally, just cut a path, then you shower the item with cold and hot water alternately, so the glass tube will break