38. This are tools or instruments activated by air pressure. It is designed in three basic devices, the air cylinders, vane motor, and sprayer. A. Machine/Power Tools B. Hand Tools C. Tools D. Pneumatic Tools 39. It has an electric motor that drives a chuck. The chuck has jaws that can be opened and then closed to grip a drill kit. A. Electric drill B. Grinding tools C. Vacuum cleaner D. Air drill UA de damage
