John Carmona
Owner and Lead Sharpening Specialist



When I'm not working on forts or pranking my employees, I like to spend time building a sharpening business. I started Sharpening Supplies in 2006 because I enjoyed cooking and woodworking, two hobbies that both depend on sharp edges. The problem was that good information and quality sharpening equipment were surprisingly difficult to find. Nowhere offered a real selection, quality tools, and expert guidance in one place. So I built it.
In the last 20 years, I've learned far more about sharpening than I ever imagined possible. But I'm still learning every day. The more I learn, the more I realize how much more there is to learn.
Hobbies: Woodworking, Cooking, Fishing, Running
Founded Sharpening Supplies in 2006
Specialties: Knife Sharpening, Tool Sharpening, Fort Building



If I have a dull knife, this is what I reach for when I want to quickly put an edge on any knife.
I've found that keeping a record of my knife sharpening helps me become a better sharpener.
Here is a fun fact: my first real sharpener was the DMT 6” Diamond Whetstone in fine grit. You could say it helped kick off my love of sharpening.
If you like saving money, this is the Tormek Kit you want.
The Edge-On-Up Sharpness testers are one of the best ways to improve your sharpening. I use it while sharpening to verify my results.
$99.00 away from free shipping!