Grim Granite on MSN

The secret to sharp & durable knives (convex edge test)

In this video, I test the Wicked Edge Ultimate Convex Kit to see if a convex edge can deliver both razor sharpness and ...
来自MSN

You’re probably using a dull knife. Here’s how to test sharpness safely

It may seem counterintuitive at first, but using a dull blade is actually more dangerous than using a knife with a sharpened blade. The reason for this is that a dull blade is more likely to slip off ...