I had ordered a 1" quartz glass tube from Amazon. My tube was 4' long. I only needed a 13" section, so I had to cut it to length. Quartz glass can be tough to cut! After several unsuccessful attempts, I ended up scoring the tube with the glass cutter, then slowly rotating and cutting the tube using a rotary tool held in my vice. I rotated the tube over the cutter bit and slowly worked around the quartz tube until it was completely cut through.