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Acetone is used in cleaning solutions applied to spray guns used in auto body work. The solvent is able to break down the harsh and potentially toxic chemicals used in auto body paints. Certain states, like California, are attempting to move away from sprays and solvents containing highly volatile organic compounds. According to a 2008 study prepared for the Cal/EPAs Toxic Substances Control, the best alternative cleaning solutions included a blend of glycol and acetone.

Finishing solutions are applied to auto body paint jobs to seal the paint and keep it from flaking or cracking due to weather or temperature conditions. These compounds typically contain acetone as an active ingredient that goes on clear so the cars paint job isnt obscured. In fact, acetone sealers usually add shine to the paint. The chemical is also used in window tints.

Auto body paints are combined with acetone to thin them. This allows the paint to apply evenly to the surface without pooling too much, which can affect drying times. The chemical dissolves when the paint is heated, leaving an even coat of paint. Acetone is also used as a pre-paint cleaner to remove any grit or surface grease on auto body parts that could affect the painting process and create dimples or raised areas.

An impact screwdriver applies rotary motion in addition to extra driving force, enabling the tool to install screws or bolts very firmly. The surge of spinning force drives the screw deeper, creating more compression and grip.

In the same way that impact screwdrivers can tightly install a screw, they can also break the grip of a frozen screw. Sudden force, completely applied in a turning motion, provides the most effective way to remove a tight screw.

When an impact screwdriver is fitted with a hardened steel bit, its downward force helps to bite into a loose or stripped screw head. This gives enough grip to turn efficiently and direct the leverage toward moving the screw.