A focus on improved workplace safety starts with identifying the major hazards. According to the Bureau of Labor Statistics, the leading causes of death among mechanics are contact with equipment, such as falling cars, and assaults or violent acts. Nonfatal injuries are most commonly due to overexertion (sprains and strains), cuts, and lacerations.
Following OSHA best practices in the garage reduces the chances of injury, as these regulations are developed and improved based on real-world injury and fatality data. Mechanics should be issued proper safety equipment, the workspace maintained, and all tools and equipment maintained to OSHA safety standards.
Keeping a stocked first aid kit, specifically configured for common workplace injuries, and training your mechanics in its use will mitigate the effects of injuries that do occur. First Aid training is cheap and readily available. In many locations, depending on availability, a trainer can be dispatched to your garage and the course completed in an afternoon.