Add punctuation: However Phen375 is much more than just being a craving crusher
A: However, Phen375 is much more than just being a craving crusher!

Add punctuation: He is considered by most historians of mathematics as one of the greatest mathematicians of all time
A: He is considered by most historians of mathematics as one of the greatest mathematicians of all time.

Add punctuation: These cut tools bear some striking features like high corrosion resistance durable trouble free operation and long service life
A:
These cut tools bear some striking features like high corrosion resistance, durable, trouble free operation and long service life.