1mm Diamond Glass Jewellery Drill Bits Tipped, 1mm Diamond Coated Lapidary Drill Bits, Solid Bits Needle, Agate Drill Bit for Jewelry Agate, 20pcs/Pack

Great value for money

1mm but the stem is even finer. I broke a couple to start with, but ok.

Loved these drills, they are small enough to drill sea glass, what I bought them for, and use clasps I bought on Amazon too! I go to craft fairs and sell these so wanted some drills that last for a good while and these do, plenty of holes per drill! Will definitely be buying these from this supplier when I next need new ones

They are not good ,snapped them all with in 20 minutes. Waste of money .

These are ok but snap really easily

Tiny but perfect for 0.8 mm wire . Worked better than expected for the money

Not grate very small so hard to use

I've ordered and used this type of diamond coated drill bit many times. They are quite fragile (as sturdy as a seeing needle) and will snap however, they make holes (in seaglass) and, if they don't snap first, I've managed to drill up to 30 holes before the diamond coat wore. For the price, they're good so can forgive some of them snapping.