OneChoi Belt Grinder Knife Jig, 7-3/4'' Long Sharpening Locator Adjustable Angle -5°~ 25°, Belt Knife Sharpener Jig with Dual Press Plates, Knife Making Angle Grind Guide for Belt Sander Machine - Amazon.com
19 Easy Homemade Knife Sharpening Jig Plans
Knife Bevel Grinding
Bevel Grind Guide Plans - The Knife Network Forums : Knife Making Discussions
Knifemaking for beginners: Bevel grinding jig by Aaron Gough