Today I’m answering reader questions about diamond drill bits, hole saws, melting glass insulators and custom molds. If you have a great glass question, send it over to us through the About/Contact page. All personal details have been removed for privacy.
Q: Help! I’ve been buying hollow core drill bits from various places used for drilling holes in recycled bottles. I use water an have used both a drill press and hand held dremmel. I also drill in pulses to allow water to cool the bit. Some have worked well and some wear out immediately. Can you recommend a brand of bit that is reliable? I don’t mind spending a little more. I want quality at a reasonable price. I appreciate the help. I haven’t seen any advice on glass forums on this topic. Thanks.