Conditions may require men to work in pairs, one firing while the other uses his intrenching tool.
He was waving a handkerchief tied to the handle of his intrenching tool.
Every man carried with him three empty sandbags and his intrenching tool.
As soon as each soldier was in place he began burrowing with 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.
Keep your intrenching tool free from rust, being especially careful that no rust gets into the sockets.