BURN-IN KNIFE
For the Best Burn-In Results: Please see the video in the link below.
https://www.shellac.net/media/BehlenBurninProcedures.mp4
This older video is excellent and very complete.
Preparing the Burn-In blade is an important section to follow prior to use of the knife.
Before use on a needed repair, we suggest viewing the video twice
and then again after a few practice repairs.
Shellac.net -- WoodFinishSupply.com