This document provides health and safety guidelines for using circular saws, hand drills, and jigsaws. It warns that wood dust from these tools can cause serious health issues like skin disorders, asthma, and nasal cancer. Proper protective equipment like dust masks and eye goggles should be worn to minimize risks. Physical injuries from these tools include cuts and lost fingers. Only trained personnel should use circular saws. Safety precautions like securing workpieces and keeping hands clear are advised for hand drills. Jigsaws also risk physical injury and produce wood dust, so safety glasses and correct blades should be used.