https://www.amazon.com/gp/product/B0002IXW28/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

You need a slip strop to get those shapes. Also a fine grit 6000 or so waterstone is nice to have, but trust me the slip strop is amazingly effective.

To learn sharpening techniques for chisels and such on a waterstone, check out Mary May's videos on youtube; she is a master and the vids are well done.

Edit; use a glove or you will get cut Edit 2; those tools are not particularly high quality, fine for beginner, but be careful and don't stress them or they will break, which can cause injury.