Specification Brand : M & J Tooling LLC ItemName : New M12 X 1.75 6g Solid Thread Ring GAGES 12 GO NO GO P.D.'S = 10.829 & 10.679 - DW33442MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33442MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.