Wow, what an argumentative lot!
I believe the question was which is the most reliable lock.
My answer is the ball bearing lock.
In my opinion.
Cheers M m, I'll try that.The Meat man wrote: ↑Fri Oct 19, 2018 6:09 am
On the bottom of ceramic plates, there is often a ring of uncoated ceramic which can be used as an emergency sharpening stone.
Edit: same with ceramic mugs.