Specification Brand : M & J Tooling LLC ItemName : New 3/4 24 UNS 2A Solid Thread Ring GAGES .75 GO NO GO P.D.'S = .7217 & .7176 - DW38421MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW38421MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.