I may get flamed for saying this, but it won't hurt my feelings. I struggled with trying to develop and maintain a knife sharpening technique using whetstones for a lot of my adult life. I told myself that I was a farmer and a knife man and, by God I was going to get this down pat to where I could put a shaving edge on every knife the "old timey way". It was hard, and it took a lots of time because it was just next to impossible for me to maintain that perfect angle every stroke. I tried the Lansky type clamp-on guides. They worked but were tedious and slow.
Then, a friend showed me an electric knife sharpening device, an how he used it in his kitchen to maintain good edges on his kitchen knives. I was sold, and bought one. I've been using it for at least 25 years with no maintenance, no breakdowns, and no ill effects to my knives.
It's the Chef's Choice Knife Sharpener. They are highly rated in reviews and testing, and evidently a solid company. The one pictured here is the model I own, and it is capable of sharpening everything from the tiniest folding pocket knife to the biggest Bowie. There will be no inadvertent scratches on your blades, above the edge itself, like so often happens when a whet rock is used "freehand".
I cannot see myself ever using anything else for my knives. My wife has a very nice set of German kitchen knives that I maintain for her using the CC 120 and, after 7-8 years of sharpening, the blades are not worn away in the least. You learn to use a very gentle touch with the C.C. sharpener and your blades will be the sharpest they can possibly be, and always look new.
https://www.sharpeningsupplies.com/p...20group%20%231
https://www.sharpeningsupplies.com/b...harpener-video
As a disclaimer, I have no financial interest in the sales of these sharpeners. I wish I did.