If you do any kind of精细 work with gemstones, glass, or tiles, this 30-piece set of diamond-coated hole saws is a lifesaver.
Each bit is 0.8mm in diameter with a shank size of 2.35mm (about 0.093 inches).
They’re designed to cut through hard materials like jewelry stones, glass, and ceramic tiles.

The total length is roughly 42mm, and they can drill up to 3mm deep—perfect for small, precise holes.

They’re made from metal with a diamond coating, so they hold up well with the right lubricant (which is recommended).

The brand is ILOVETOOL, and they’re manufactured in China.

Whether you’re making jewelry, doing lapidary work, or just need to drill a clean hole in a tile, these bits get the job done.

The set comes with 30 pieces, so you’ve got spares when one wears out.

No UPC, but at this price and quantity, it’s a solid deal for hobbyists or pros.