Bits for power drills; Cemented carbide tips; Chucks for power drills; Core drilling bits; Drill chucks for power drills; Drilling machines and parts therefor; Electric screwdrivers; Extensions for power drill bits; Extensions for power tools; Power-operated ratchet wrenches; Power drill accessories, namely, non-electrical adapters for use in joining extensions and power drill bits; Power drill bit extensions; Power drill bits; Screwdrivers, electric; Tool bags, filled with power-operated tools