Review on Honbay Leather Punch Hollow 4 5Mm by Sam Lee

As mentioned in some other reviews, they arrived blunt. A line was clearly visible along the edge instead of a clean cut edge. After a few uses (I had to cut a few extra holes in some heavy leather straps) the 6mm die (hammer) began to take on an irregular shape. I didn't hit the surface with much force at all. They've worked in a pinch, but as far as their claims that it's heat treated/hardened steel, not much.