Open end wrench
The object is a double open-ended wrench, specifically a vintage Craftsman Powermaster wrench. Key features include:Sizes: It has two different size openings, 1/2 inch and 9/16 inch. Markings: It is marked 1/2 POWERMASTER 3794 9/16. Brand: It's a Craftsman, likely from the Powermaster line. Material: Made of metal, possibly steel, for durability.Use: Designed for gripping and turning nuts and bolts of corresponding sizes. Vintage: Given the design and markings, it is likely a vintage tool. Collectibility: Vintage tools can be collectible, especially those in good condition.