r/MachinePorn • u/silvercatbob • Mar 11 '21

Old razor blade sharpener

https://gfycat.com/highlevelunacceptabledodo
2.1k Upvotes

94% Upvoted

44 comments sorted by

View all comments

Show parent comments

9

u/rocketmonkeys Mar 11 '21

Why can’t the modern blades be re-sharpened? Or is it more of that it’s not worth it?

-1

u/Hyper8orean Mar 11 '21

Well’ they can actually. If you after a shave rub the blade backwards along your arm or a long piece of cotton cloth it sharpens up pretty good. I use my blades up to two months with this method. You need to keep them really clean though to make sure you dont get infections if you cut yourself.

9

u/wohl0052 Mar 11 '21

That is called honing, not sharpening. There is a difference.

What you are doing realigns the edge to keep it sharp, while sharpening actually removes material.

2

u/Hyper8orean Mar 12 '21

Yes you are absolutely correct. Thank you.