Make Sea Glass Jewelry. Diamond Drill Bits for sea glass, sea shells and beach glass. We arranged for a special price from the manufacturer on these diamond drill bits. 1/16" is the most popular size for beading wire, fishing line, earring findings and jump rings. Your order includes: FREE copy of the drilling guide. FREE shipping in the US and a 30 day, 100% money back, no risk guarantee. No hassles, no hard feelings. These diamond drill bits are the best value that you'll find on the web or anywhere else. Fits your Dremel tool. rotary tool, hand drill or drill press. Use wet for longer bit life It really is an easy decision. You'll be glad you did! These bits van also be used to drill ceramics and tile.