How to distinguish diamond coating steel file from other material?

Hello everyone,Good morning!

Today let's learn how to distinguish diamond coating steel file from other material coating.

As you can see from the photo, on the left is white-sand coating steel file, on the right is diamond-coating steel file.

So what's the difference?

Firstly, under the sun, the diamond coating is sparkle. But other material won't shine.

Secondly, when you use them, you will find that this diamond coating steel file is more sharpener and durable than other material.

Thirdly, the working life of diamond coating steel file is more longer than other material.

In a word, the quality of diamond-coating steel file is higher than normal material.

If you have any question,please feel free to contact us.