32. Which of the following is not a tool for hand sharpening? A. Blades of knife B. Cold Chisel C. Punches 33. Which of the following is an example of a minor repair of tools? A. Replacement of a wooden handle of a hammer B. Cieaning ine rock comers of hand tools by using air vacuum C. Applying of lubricating oil D. Tightening of bolts and nuts​