Specification Brand : M & J Tooling LLC ItemName : New 1 3/4 12 UN 3A Vermont Thread Ring GAGES 1.75 GO NO GO PDS= 1.6959 & 1.6914 - DW33516VTG ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33516VTG ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDTHREAD RINGGAGES.