Here is a tutorial on drilling holes in rocks from @ringgoldnicole - In this demo she takes a 3mm Diamond Core Drill Bit from @riogrande and drills underwater using a piece of cedar wood as a support. The key is to drill slowly and not try to push! Thank you so much for letting us share this technique I know it’s one that many people have asked about over the years. If anyone else wants to share other drilling tips please email me! Corkie@metalsmithsociety.com #drillingstones #makingjewelry #jewelryteacher