Understanding how mechanical parts fit together, alignment techniques, tolerances, and fastener types. Knowledge of hand tools (spanners, screwdrivers, hammers) and power tools (drills, grinders, torque wrenches). Drilling, tapping, filing, cutting, and basic bench fitting operations. Knowledge of fasteners, bearings, seals, gaskets, and other assembly components. Using measurement tools to verify accuracy. Teamwork in coordinated assembly operations