Drilling polished stones, Agate and Jasper, for jewellery mounting with a Dremel or Parkside rotary tool takes such a long time that it can be really off-putting.
This is the only useful method of drilling hard stones. I have been drilling my Agate and Jasper polished tumble stones to make pendants using a Dremel with diamond tipped drills for the past couple of years. However it does take a fair bit of time to drill each stone, even just making a tiny hole just 4-5 mm deep can take 20-30 minutes!
This makes drilling these stones a real chore and to be honest I have tried several ways to avoid the drilling, none of which worked very well.
With a bit of advice from my pal Ed I have now cracked the problem. Using diamond drills in a water fed pillar drill makes the job easy. But there is a couple of tricks needed!

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