Question

Describe how to file flat, square and curved surfaces, and how to achieve a smooth surface finish (such as by draw filing, the use of abrasive cloth, lapping using abrasive pastes)

Answer 1

To file flat surfaces, use a flat file in straight back-and-forth motions. For square edges, use a square file at a 90-degree angle. For curved surfaces, use a round or half-round file. To achieve a smooth finish, you can draw file, use abrasive cloth or sandpaper, or try lapping with abrasive pastes.