Which type of implement could be considered a burglar's tool?

A picklock, key, or bit is considered a burglar's tool because these items are specifically designed or commonly used to unlawfully gain entry into a building or locked area. These instruments have a clear criminal application in the context of burglary, as they facilitate unauthorized access by manipulating locks or other security devices.

While a hammer, screwdriver, and wrench can have legitimate uses in construction, repairs, or vehicle maintenance, they do not inherently serve the same purpose as the tools highlighted in the correct answer. The other items listed are more associated with general labor or maintenance tasks and do not carry the same connotation of facilitating theft or illegal entry. Therefore, the nature of a picklock, key, or bit distinctly aligns it with the category of implements utilized in the commission of property crimes.