Love Of The Grain Workshop here with Easy instructions on changing planer blades or knives on a Delta model 22540 type II box planer. It’s a 12” planer and most 12” box planer models including other manufacturers install with the same or similar methods. I hope this helps anyone needing to do this. Feel free to ask questions. Find me also on Facebook, Instagram & Twitter. Be sure to like the video, comment and subscribe and hit the notification bell. Thanks for watching.