🔍 Key Concepts

• Common shop terminology for hand tools used with metal files • Specific name given to a stiff, short-bristled wire brush made for cleaning file teeth • Difference between a general "brush" name and the traditional trade name

💭 Think About

• Think about what a machinist or mechanic would traditionally call the special stiff wire brush just for cleaning files, not for general surface cleaning. • Ask yourself which term sounds like a long-established tool name you might see in a catalog or tool crib, rather than a simple description. • Consider which options sound slightly "made up" or generic versus which one you might realistically hear from an instructor in a machine shop.

✅ Before You Answer

• Verify which term is commonly used in machine shop practice textbooks for cleaning metal files. • Check which option sounds like a specific tool name, not a vague description of what the tool does. • Eliminate choices that simply repeat the word brush with no traditional trade name attached.