Nerf Barrel chamfering tool

Needed a quick and dirty guide to clean up some nerf barrels that arrived with a very rough chamfer, figured I'd share with the community.

608zz bearing in the bottom, I'm using a 19mm chamfering bit from amazon. Fits the new normal 16mm OD barrel and keeps it fairly straight on compared to freehand.

Minimum length is about 4" - that'd be the barrel pictured.