There are many threads on the forum discussing diamond stitching chisels but I thought another one was in order.  Several years ago I purchased a 2.5mm Tandy Craftool Pro diamond stitching chisel.  The chisel has 10 teeth and at the time was not offered in a 2-tooth version.  I didn't buy the 1-tooth iron because I believe it is mostly useless.  I will explain later.  Those who use chisels already know why. I really liked the chisel and hoped that Tandy would listen to feedback and begin pr