None of my Cs Osborne punches came anywhere near sharp enough. I had to sharpen and polish every single one.
My weaver Master tool stuff came plenty sharp to use and the edges were beveled much more consistent than the CS Osborne stuff
Once they are sharpened properly , you really can just push them through the leather with a little hand pressure, twisting, or rocking motion.
My tandy punches started falling apart once I started resharpening them. I think they heat treat or harden the very end, and once you polish/sharpen that area away, you get into super soft steel that doesn't hold up that well.