So,I was looking to purchase a contact wheel, 10 to 14inches, to help with some handle shapng as well as trying my hand at some hollow grinding, and just because I want one. I have a kmg grinder, and kmg sells wheels for it but they are very expensive. I've found some other sites selling contact wheels, but I'm unsure as to their quality. What size would you folks recommend for someone the mainly does belt knives and some folders? Also, where would you fellas purchase? Thanks!