Excavation is often the largest cost for most projects and losing workers due to a work related injury is an even larger cost. Ergonomic pneumatic digging tools may help decrease work related strains or back injuries when performing the daily repetitive task of digging in keyhole or traditional excavations. The ultra-lightweight tools, which are at least 43% lighter than most tools in its class. The robust tools constructed with a special plastic frost-proof body or dielectric materials use an efficient low consumption of air to produce high power. These tools loosen difficult earth, break concrete, rock, asphalt or frozen ground. Add these to the digging arsenal to increase excavation production and to decrease injury claims, keeping workers healthy, happy and injury free.