A few years ago, I worked with a warehouse stocker named John who had injured his back and was looking to get back to full duty. His job was important to him because he had a family to support, which included taking care of an adult son with special needs.
Assemblers in many different industries depend on all sorts of pneumatic, DC electric and battery powered tools for a wide variety of fastening applications. Unfortunately, the devices are also the source of countless ergonomic headaches for manufacturing engineers.