How do you drill holes in ceramics or/and clay items without it cracki

You need to use a diamond drill bit made for cutting holes. Do not press the bit into the item, but let the drill and bit do the work. Also, make sure neither the bit or the item get hot from the friction. I use cold water on the blade and piece I am cutting and add it frequently. Be patient and gentle and you should have good results.

Use a small glass or tile drill bit and work slowly to much pressure could crack it

Purchase a drill bit made specifically for the purpose of drilling into ceramics, label will say it's for glass & tile.

I bought a drill bit specifically for ceramics and glass. Go online and there are several venders. It looks like a long cylinder with the edge looking like a nail file.

Thank you I'll check on it

bed them in sand and then drill holes and use bit for ceramics