Specification Brand : M & J Tooling LLC ItemName : New M2.5 X .35 6g Solid Thread Ring GAGES 2.5 0.35 GO NO GO PD'S = 2.254 & 2.189 - DW33383MJ ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC NumberOfItems : 1 PartNumber : DW33383MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.