Beveling the tip is a technique for getting a really good taper at the tip of the reed. This is the most important place on the reed, and a proper taper here is critical for response and strength. Create a 45 degree angle in the front 1/2 millimeter.
Direct the knife or razor straight into the plaque without making a scooping motion.
Ben Kamins Example 1:
Ben Kamins example 2:
To preserve this bevel later in the finishing process, when using your file, roll it up on its edge as you approach the tip of the reed so that it doesn’t thin any part of the very tip of the reed.
Common Tip Issues
For more information on how the tip bevel relates to the reed as a whole, see this video from Rian Craypo. She addresses tip bevel tapers at 8:29.