When my husband first joined the navy, he told me that his ship was in dry dock and as a crew member he had to do a lot of work in getting the ship ready to go back to sea. One of the things he mentioned was his used of pneumatic tools and how much easier they made it to do the work. He said he used pneumatic air gun to chip paint, and with a different attachment to chip tile. Without pneumatic tools, the job would have taken much longer. He mentioned that pneumatic tools were safe and with a minimum of training, extremely easy to use.