or entrenching tool
a small, collapsible spade used by a soldier in the field for digging foxholes and the like.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for entrenching tool
Historical Examples of entrenching tool
Every man carried with him three empty sand-bags and his intrenching-tool.
The intrenching-tool is a miniature pickax, one end of which resembles a large-bladed hoe with a sharpened and tempered edge.