ITEM NAME:Scientific Glass Tube Tubing Cutter Score Line Marker Cutting Tool Device Description: Very handy glass tubing cutter, cutting up to 1-50mm OD Tubing and below 30mm thick This tubing cutter is designed to score the circumference of the tube. It will score both borosilicate and flint glass producing a very clean break. Note that the item could not cut the glass tube totally, it coud just cut out a path, and then you shower the item with cold and hot water alternately, so the glass tube will break The cutting wheel is replaceable. Material: Stainless Steel Color: Silver tungsten car.Very handy glass tubing cutter, cutting up to 1-50mm OD Tubing and below 30mm thick. This tubing cutter is designed to score the circumference of the tube. It will score both borosilicate and flint glass producing a very clean break.