For drilling holes in small beach pebbles to use in jewelry, a 2.5mm diameter hollow coring bit works well. The bits they sell
via: jennyhoople.com
For drilling holes in small beach pebbles to use in jewelry, a 2.5mm diameter hollow coring bit works well. The bits they sell that are officially for Dremels are way too expensive, I highly recommend getting your bits from Rio Grande Jewelry Supply. They have nice packs of 5 for $14 as opposed to one official Dremel bit for more than $20! You’ll be using all 5 of