Specification Brand : M & J Tooling LLC ItemName : New M12 X 1.75 6g Vermont Thread Ring GAGES 12 GO NO GO P.D.'S = 10.829 & 10.679 - DW34161AK5 ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW34161AK5 ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDTHREAD RINGGAGES.