Review on Woodworking Plastic Jewelry Carving Tool - 0.3mm-3mm by Josh Chenier

Regular drills (not color tried), probably the worst drills I've come across.* The angle of the tip is almost flat, which means it's VERY difficult to stay where you want it * They don't feel like particularly hard steel * They're not straight or have a permanent shape * Most importantly, they're not AT ALL Spicy. They couldn't cut through relatively soft plastic with a vise. I ended up piercing the plastic the way I would have done with a real needle - brute force, no drilling. The shape of the tip of the drill is almost flat, and the "tip" is blunt and rounded. That means he'll need a pilot or he'll wander around like a drunken sailor. But. These are the bits you would use to create a pilot hole. Since the purpose of such a drill is to make tiny holes in tiny objects, they are almost useless. I also found that they are not particularly straight. The bit installed by Dremel is obviously wobbly all over. Even using the dremel requires excessive pressure and looks like it's melting the plastic instead of cutting it. The pin vice (hand drill) is only suitable for the softest material. The top hinge is poorly designed to rotate under pressure, beep loudly quickly, and create too much drag. Not suitable for beadwork or PCB as stated. In general, throw away the bat bag. I haven't tried bits with a plastic collar - maybe they are better? Even if you're drilling something other than balsa or young pine, keep going.