I Filed Backwards 2500 times, and this happened.

I put files to the test to see if back-dragging dulls a file like many claim. I test coarse, medium, and fine files after I built a large testing rig to stroke tens of thousands of times. I also test if back-dragging unclogs files. I use the slow-motion camera to analyze the results and use a microscope to observe all the files!

Get the Pferd Files Here!
https://fireballtool.com/10-file-set-5-machinist-files-in-pouch/

Our New Hardtail Vise
https://fireballtool.com/fireball-hardtail-bench-vise-deposit-for-pre-order/

The Gloves I Wore
https://fireballtool.com/majestic-lightweight-cut-less-dyneema-diamond-a3-pu-coating-3-pack/

How did I build this Machine?
https://www.youtube.com/watch?v=52d0TmmQ5yI
Musicbed SyncID:
MB01UXDSPZMMX9Q

Видео I Filed Backwards 2500 times, and this happened. канала Fireball Tool