![what's the best way to drill through stones and glass/obsidian?I've been making jewelry and I've managed to get one opalite arrowhead drilled through without breaking it but it took about an hour. what's the best way to drill through stones and glass/obsidian?I've been making jewelry and I've managed to get one opalite arrowhead drilled through without breaking it but it took about an hour.](https://i.redd.it/whats-the-best-way-to-drill-through-stones-and-glass-v0-gln6ugwaesz91.jpg?width=8160&format=pjpg&auto=webp&s=0937f0e6b9187de3a6504eb9cc7cc31c41f9692b)
what's the best way to drill through stones and glass/obsidian?I've been making jewelry and I've managed to get one opalite arrowhead drilled through without breaking it but it took about an hour.
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Assorted Pack of 20pcs. 4 Sizes 1mm 1.5mm 2mm 2.5mm Diamond Twist Drill Bit Jewelry Beach Sea Glass Shells Gemstones Lapidary
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