Specification Brand : M & J Tooling LLC ItemName : New 11/16 12 UN 2A Solid Thread Ring GAGES .6875 GO NO GO P.D.'S = .6318 & .6264 - DW33441MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33441MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.