Post WWII early 50's Vintage Saw to use in conjunction with your 1/4" electric drill. Portable Electric Tools, Inc., was the manufacturer, and you can see on the box the company abbreviated it to PET Tools as its logo. PET Tools made products for Sears and Roebuck in the 1950s, and they also have a variety of magazine advertisements in Popular Mechanics magazine in the late 1940s and early 1950s. A rare find and a jewel to add to tool collections.