Buzzie

Dredging wasn't mining. A man had to know something about lode mining, and could Andy name a man working on the boat who knew a muckstick from a buzzie?

Source: wiktionary

Both buzzies were broke down. Burke left me alone to do my work. I disconnected teh compressed-air lines, opened my tool box and got at it.

Source: wiktionary

Technology such as steam-powered hoists and "buzzies," hand-held, two-man air drills, speeded up production but did nothing to improve working conditions. The buzzies, in fact, produced so much fine dust that they led to a higher rate of silicosis, a debilitating respiratory disease, and were soon dubbed "widowmakers."

Source: wiktionary

That's a fair pair of buzzies you've got there.

Source: wiktionary