The M-tip and B-tip of a pen are two different nib types, which are obviously different when writing.

First of all, the M-tip refers to the medium-thin tip, and its pen tip is thin, which is suitable for writing small characters or occasions where thin lines are needed. This pen tip is characterized by fine lines and smooth writing, which can well show the details and changes of strokes. Therefore, M-tip is usually used for artistic creation that requires fine lines, such as calligraphy and painting.

B-tip refers to a very thin pen tip, which is very thin and suitable for writing very small words or occasions where very thin lines are needed. This pen tip is characterized by extremely fine lines and smooth writing, which can well show the subtle changes of strokes. Therefore, the B-shaped pen tip is often used for writing small characters, signing, keeping a diary and other occasions that require extremely thin lines.

In addition to the different thickness of the pen tip, there are some other differences between the M tip and the B tip when writing. Because the M-tip is thick, it is necessary to exert certain pressure to let the ink flow out when writing, which can make the lines more full and powerful. Because the B-tip is very thin, it needs less pressure to make the ink flow out, which can make the lines softer and more delicate.

In addition, M-tip and B-tip have different requirements for paper when writing. Because the M-tip is thicker, the requirements for paper are lower when writing, and it can show good writing effect on all kinds of paper. Because the B-tip is very thin, it requires higher paper, and usually requires smooth and delicate paper to show the best writing effect.