Vanished Tool Makers: Syncro Corporation, Oxford, Michigan

I picked up this Syncro Model 504 Sander/Polisher this week.  All it needed was a new power cord and to have the push switch re-attached at the front.  Does it ever vibrate!  (According to the ad below, it could do double duty as a "marvelous massager"!)

According to Vintage Machinery, the Syncro Corporation started as a spin-off in 1946, making tools based on vibratory motors developed by the parent company.  Between the mid-1950's and mid-1970's, they made a miniature scrollsaw that was marketed by Sears under both the Sears and Craftsman brands. The company ceased manufacture of power tools in 1974.

Popular Mechanics, October 1950

Popular Mechanics, February 1951

It looks like my Model 504 was upgraded in 1955:

The Family Handyman, May 1955