Review on Enhanced Precision Carving with Universal Clamp Nuclear Tool by Gabriel Salleh

I posted a question about using this tool to drill larger holes in pre-drilled beads and gemstones and it works with beads. Of course I don't use much pressure to widen the hole, but I didn't get any cracks! Haven't used a vise yet, but my thumb and forefinger are sore from the 15-20 rocks I've held while drilling. The drills come in a great case with the mm of the drill so you can keep your drills organised! In general very happy with the purchase!