The e-tool, also known as an entrenching tool, is a small, portable shovel that was first invented by the military in the early 20th century. The exact date of the invention of the e-tool is unclear, but it is thought to have been developed in the years leading up to or during the First World War.
The e-tool was designed to be carried by soldiers in the field, and was used for a variety of purposes, including digging trenches, building fortifications, and other tasks. The e-tool was typically small and lightweight, and could be easily folded or disassembled for easy carrying.
Over time, the design of the e-tool has been refined and improved, and it continues to be used by military forces around the world. In addition to its military uses, the e-tool has also become popular among outdoors enthusiasts, who use it for camping, hiking, and other activities.
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