Specification Brand : M & J Tooling LLC ItemName : New M8 X 1.25 6g Solid Thread Ring GAGES 8 GO NO GO P.D.'S = 7.160 & 7.042 Check - DW33337MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33337MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.