Swivel Knife Blades

[@terryclark7864]

Thank you Johan. Very interesting. I'm about to buy a good quality knife and this has helped a great deal.

[@darrylmaas2139]

Thanks Johan, I did learn something from this video.

[@darksi226]

Thanks for the info/demo

[@notwrkn2mch]

It helped a lot...... Thanx :)

[@CantrellLeatherGoods]

Wow, I’ve never seen the clear ones- are they glass? You always have such interesting content. Thank you!

[@leatherworker]

I am not very sure. And they are so nice to work with that I do not want to risk damaging them to find out. Even Jim Linnell was not too sure about their origin.

[@jeromesmith3740]

I can tell you exactly what that is for a material. It is sapphire! It is a very common material for use as cutting edges, helicopter windows, etc. It is used for all kinds of things.

[@CJMustang93]

How do you change them thoughBecause I have the 70s Model