Review on Precision Stainless Steel Metric Millimeter Machinist by Ryan Hampton

Inexpensive (I actually give 3 1/2 stars). However, I have one big problem and one very small problem. The metal edges are so sharp it's almost like a razor blade which can be dangerous to your hands/wrists if you're not careful. My job assistant noticed the same problem, so it's not just me. It would be better if the edges were ground/polished (like micro-curves) for easier and safer handling. Also, be very careful with these rulers near anything that can be easily scratched or torn (think softer metals, plexiglass, or delicate fabrics). My second problem is almost no problem, but once the holes are punched in the red plastic ruler holders, punch them from the open side (not the opposite side). as I received) so that the rulers don't fall to the ground when hanging because the hole is at the bottom and the hanging holes are at the top. Kapisch?