Air powered tools, namely, drills, screwdrivers, rivet hammers and saws; Chucks for power drills; Drill sharpening machines; Drilling machines; Drilling machines and parts therefor; Electric hand-held drills; Electric knives; Extensions for power drill bits; Power-operated tools, namely, drill hammers; Power drill accessories, namely, non-electrical adapters for use in joining extensions and power drill bits; Power drill bit extensions; Power drill bits; Power drills; Power saw blades; Power ...