Similar to our small solid diamond drill bits, these drill bits are hollow allowing water to circulate more freely. They are ideal for drilling holes in glass, tile, ceramic and porcelain, glazed pottery, beads, pebbles, stone, slate, petrified wood, fossilized bone and rock. For those tough pieces of sea glass, they work a dream!
“I use Eternal Tools diamond core drills on glass about 1mm-3mm thick and can normally drill between 200 and 300 hundred holes.The best ever result was 450 holes with one drill bit ( impressive) I use slow speeds, always gently pumping up and down and drill constantly under water”
Small Diamond Twist Drills by Eternal Tools are great for expanding already existing holes in stones, rock and pebbles. Sometimes you can find pebbles on the beach with a hole already in them ( a rare find but you can!) open up the hole with one of these diamond twist drills and make it into a pendant.
12 THINGS YOU SHOULD KNOW ABOUT DIAMOND DRILL BITS*** If you drill through sea glass then this article's for you! Everything you need to know about how to use your diamond drill bits correctly and all those common questions answered such as 'How Long Will My Drill Bits Last?. Will they Fit my Dremel Drill?, What Is a Core Drill? and lots more....