K22. Outline the use of vice jaw plates to protect the workpiece from damage K23. K24. I 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) Describe how to select saw blades for different materials, and how to set the saw blades for different operations (such as cutting externally and internally) Accessibility: Investigate DFO