Review on Leather Plastics Leather 1 5Mm 4Mm ASONTAO by Tim Ram

I only bought this set of hole punches because I needed a large 4.0mm hole punch to punch holes in leather to make a bowstring. Cut through a layer. I have just a dent in the skin When I inspected the 4.0mm punch, I saw that the cutting edge only expanded about 1/4 around the hole, the rest of the edge was dull. I'll check the punches leave it and try to sharpen 4.0mm maybe I can cut it with some fine tuning .Also the exquisite look of the dies as shown in the promotional picture is not what I received.I would not recommend these dies.