KAKURILeather Corner Punch Tool Small 4.5mm Made in Japan, Professional Leather Cutter Knife Half-Round U Gouge, Sharp Japanese Carbon Steel Blade

This corner "punch" is the best surprise I've had on Amazon in a while. This tool came in super sharp and ready for duty. Seriously just had to place it into position and apply minimal hand pressure and it sliced through like butter. Loved it so much I just ordered two more sizes.

I am an experienced, leather craftsman… I chose to try one of these in addition to my corner punches that you hit with a hammer. This thing is so sharp it requires no Hammer you just line it up and press down and it cuts like butter.Some of the leather supply companies sell what looks like this exact same knife for about $10-$15 more. I think this is quite the bargain.Thanks 🙏 G

I purchased the smallest one hoping to put a slight rounded corner on some of my projects. It was amazingly sharp and the right size I was looking for.

needs to be sharpen often

Works great for leather

Very sharp, no force is needed whatsoever, very precise clean round cut ...absolute beauty...

Product came sharp, easy to use, only draw back, is ii wish they would put a radius size instead of mm size, other than that very useful tool

That's all you really need to know. I'm very happy with the knife (I got the 9mm). Less happy with the price but it saves me so much time and it is so much more accurate that I will ever be.