🔍 Key Concepts

• How tool sizes (like wrenches, hammers, and files) are usually specified in shop practice • The difference between the working surface of a file and the tang (the narrow part that goes into a handle) • What part of the file actually does the cutting work

💭 Think About

• Ask yourself: when someone says a "10-inch file," what two points on the file are they usually measuring between? • Which part of the file is not normally counted in the stated size because it doesn’t do any cutting work? • Look at each choice and decide: which description focuses on the main cutting portion of the file rather than the entire tool or just the handle portion?

✅ Before You Answer

• Make sure you know clearly what the tang is and whether it’s included in nominal length measurements for hand tools • Visualize a file: identify the point (tip), heel (where the teeth stop and tang begins), and tang; then decide what two points define its catalog/nominal length • Eliminate any option that measures only non-cutting parts or that obviously ignores how tools are normally sized in catalogs and manuals