I have some of the Tormek honing compound in a tube. They say somewhere that it is equivalent to about 8,000 grit. It really goes a good job.
I do not have a Tormek unit…. Too pricey for me. I made an mdf honing wheel mounted on a faceplate. With this on the lathe, I can slow the speed of the wheel and it really hones knives/chisels to a razor sharp edge. Also, I simply use a piece of solid cardboard such as a cereal box or backer from a notepad as s stropping surface and use either the Tormek compound or some yellow or green stick compound. Those work well too. I do have a piece of leather but like the stiffer cardboard….. less round over of the cutting edge and it is basically free… we normally throw this stuff away or in the recycle bin.