Metric Thread Ring Gage M.5 / 50UNM pitch .125mm; One piece handle containing Go & No-Go members Precision Thread Gage made of High Speed Steel then hardened. Picture is representative of part, Special order allow one month lead time for delivery. Brand is;" MiniTaps" made specifically for us in Switzerland. If you need wear check gage match with 02583 order together with gage.
Special order allow six weeks lead time for delivery