A file used to sharpen hand tools should always have which of the following?

A file used to sharpen hand tools should always have both a handle and a fire guard for several important reasons.

The handle is essential for safe and precise use of the file. It allows the user to maintain a firm grip while applying the necessary force to sharpen the tool. This grip is crucial for control, reducing the risk of accidental slips that could lead to injury or damage to the tool being sharpened.

The fire guard, on the other hand, serves a vital safety purpose. When sharpening tools, metal filings can be produced, which may be hot or create sparks. The fire guard helps to prevent any potential ignition of nearby combustible materials, ensuring a safer working environment.

Together, these components provide not only efficiency in sharpening but also enhance safety during the tool maintenance process. This is why having both a handle and a fire guard is the correct answer.