Engine Hand Tools document defines hand tools as tools powered by hand rather than a motor. It discusses the purpose of hand tools for tasks like hammering, tightening, loosening, cutting, drilling, removing, and installing machine parts. It provides safety guidelines for using tools and lists common tools like screwdrivers, spanner sets, pliers, hydraulic jacks, L-key sets, and socket sets. For each tool type, it provides a brief explanation of its uses.