... 32gg, 36gg, 38gg, 40gg, 42gg 15*18*36*3 R222 GF3037 gauge working part , TriangularGauge Shank. 15 (shank diameter in Millimeter is 1.83) ... gauge intermediate section,18 (intermediate section diameter in ... Millimeter is 1.2)Gauge Working Part, 36 (triangular blade ...