0000-160 2B Plug "No-Go" Gage NS stands for (American) “National Standard” miniature Thread series. This gage is one piece handle containing "No-Go" Precision Thread Gage made of High-Speed Steel then hardened. Standard fit is 2B Picture is NOT representative of part current stock has 2mm handle. Brand is;" MiniTaps" made specifically for us in Switzerland. Prices include certification with factory measurements and serialized handle. included in price.