For instance, take the example sentence in the graphic above. The phrase inside of is colloquial and as such conveys that informality which more effective technical writing omits. A more effective writer will opt to replace the colloquial phrase with a more formal but equivalent meaning expression. Here are some examples:
The inspection crew completed their work in under two hours.
The inspection crew completed their work within two hours.
In some instances, inside of seems to be the proper expression because the word the writer really wants to use is inside. In such cases, the word of is redundant and should be eliminated. Note the difference between the two example sentences below. The first uses the redundant inside of, and the second eliminates the redundancy.
The weld appears just inside the joint.
To produce more effective technical writing, take the inside track on inside of and other such expressions. Avoid colloquialisms and redundancies in language. Such efforts will produce not only more effective technical writing but also more effective presentations of both you and your brands to your audience.