Dremel 662DR 18-Inch Glass Drilling Bit

The Dremel 662DR 1/8-Inch Glass Drilling Bit is a great product for those who are interested in drilling holes in glass, ceramics, porcelain, and other materials. The bit can be used with a drill press or a handheld rotary tool like a Dremel. The recommended speed for drilling glass is 3000 RPM, with minimal pressure and sufficient cooling water. This will help prevent breakage and ensure a clean cut. According to customer reviews, this product holds up well if used properly and outperforms cheaper knockoffs. One customer who does a lot of stained glass work highly recommends this bit for cutting holes in glass, while another found it to be the best Dremel bit for general use on materials like stone and shells. The hollow part of the bit is designed to reduce breakage and allows for a clean cut. However, some customers have had issues with the bit breaking after a short amount of use. One customer only managed to do 3-4 holes before the bit wore out, which was too expensive for them to continue using for their specific project. Another customer found it difficult to line up the other side of darker glass when cutting, which slowed down their work. Overall, the Dremel 662DR 1/8-Inch Glass Drilling Bit is a great product for those who need to drill holes in glass, ceramics, porcelain, and other materials. It's important to use the bit properly to ensure that it doesn't break and to get a clean cut.