Why does a racket break?
It is always difficult to assess what caused a racket to break. Between 1-2% break due to a production failure that causes them to break either in the handle or in the frame.
A racket breaks in 98% of all cases due to the following conditions:
Hit it with your fellow player´s racket
Hit the floor with the racket
You throw it - by mistake of course.
You have not used an adapter for stringing
You have not tightly tied the racket to the stringing machine (too hard or loose)
You use a wrong, old or inexpensive tool for stretching