3D printers; Boring machines; Electric chain saws; Electric hand-held drills; Electrical drills; Engraving machines; Hot melt glue guns; Pneumatic nail guns; Pneumatic ratchet wrenches; Power-driven saws; Power-driven wrenches; Power-operated angle grinders; Power-operated polishers; Power-operated spray guns; Screwdrivers, pneumatic; Wood chipping machines