I’ve been exploring different diamond drills for lapidary applications, mainly for harder stones like agate and jasper. It’s interesting how much the bond type and diamond concentration affect the surface finish and tool life.
I recently came across a helpful guide from UKAM Industrial that explains how to choose the right drill depending on the stone, hole size, and cooling method. It’s quite detailed and worth a read.
Has anyone here compared metal-bond vs. electroplated diamond drills for gemstone work? I’d like to hear what setup gives you the cleanest, chip-free holes.