Specification Brand : M & J Tooling LLC ItemName : New 1 1/2 16 UN 2A Solid Thread Ring GAGES 1.5 GO NO GO P.D.'S = 1.4578 & 1.4526 - DW31500MSAF ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW31500MSAF ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.