🔍 Key Concepts

• Types of files and their typical uses in basic hand tool work • Difference between coarse, bastard, smooth, and mill files • What material or finish a mill file is commonly associated with in metalwork and fitting

💭 Think About

• Think about where you’ve seen or used a mill file: is it usually for rough stock removal, delicate smoothing, or for a special soft material? • Compare the word ‘mill’ to ‘coarse’ and ‘fine’ in normal language – which kind of finish does it suggest in metalworking? • Ask yourself which of these options sounds like a general, common use of a standard shop file versus something more specialized, like for a particular material.

✅ Before You Answer

• Match the term mill file with the type of finish it normally produces (fine vs coarse) • Decide whether a mill file is defined by how it’s moved (push vs draw) or by the kind of cut/finish it provides • Consider whether mill files are known for working on a specific material (like lead or plastic) or for general metal finishing