Abrasive disks for power-operated grinders; Abrasive wheels for power-operated grinders; Aerating pumps for aquaria; Blades for power saws; Chains for chain saws; Circular saws; Drill chucks for power drills; Electric screwdrivers; Electronically and power-operated tools, namely, pullers and components therefor, nut splitters, extractors, separators, spanners and coil spring compressors