6 3-Jaw Lathe Chuck Sears/Atlas Brand. This chuck is used and very old it came off a Sears/Atlas 12x36" Has a 1-1/2"-8 thread mount that will fit the 1-1/2 Spindles on Atlas and Craftsman lathes. Chuck works as it should I decided to just get a 5-C collet chuck they are better with versatility and I'm just doing small hobby parts and don't need a big chuck.