Power drill bits; Bits for power drills; Power drill bit extensions; Extensions for power drill bits; Centering drilling bits being parts of machines; Drill bits for rock drilling; Polishing system for use in single-head machines comprising grinding and polishing discs for stone profiling and edges; Abrasive disks for power-operated sanders; Abrasive wheels for power-operated grinders; Grinding and polishing machines; Power driven polishers; Pads for floor polishing machines; Portable saw mills; Power tools, namely, tile saws; Drive belts for machines; Mixing machines; Power-operated staple guns; Power staplers; Power operated metalworking machine tools, namely, drilling tools; Electric hand-held drills; Drilling machines and parts therefor; Cordless electric hand drills; Power tool parts, namely, collets; Power-operated tools, namely, grinders; Blades for power tools; Diamond-pointed metal-cutting tools; Power tools, namely, scroll saws; Power tool accessories, namely, router templates for cutting inlays; Grinders being power tools; Tool kits comprising power-driven saws and hand saws