Specification Brand : M & J Tooling LLC ItemName : New M24 X 3 6g Solid Thread Ring GAGES 24 3.0 GO NO GO P.D.'S = 22.003 & 21.803 - DW33573MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33573MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.