entrenching tool

For this purpose each man in the British army carries a small entrenching tool on his back, as well as two sandbags.

Another weapon that has proved itself indispensable in this war is the entrenching tool.

He contrived to invent and patent a motor entrenching tool, supposed to act fifty times quicker than anything else ever seen.

Those that did not carry a pick, had a spade; and every man carried a special entrenching tool.

I called for Smith, my servant, and telling him to bring his entrenching tool, I began to prize up some of the tiles.