... /4"20mm±3.00.7mm - 552' - 2M25, 24, 23, 22, 21, 20, 191"25mm±3.00.9mm - 551' - 2M25, 24, 23, 22 ... , 181-1/4"31mm±4.00.9mm - 401' - 2M23, 22, 21, 20, 19, 181-1/2"40mm±5.01.0mm - 451' - 2M23 ... ±7.01.0mm - 301' - 2M21, 20, 19, 183"75mm±8.01.4mm - 302' - 2M20, 19, 18, 174"100mm±8.01.6mm - 302 ... ' - 2M19, 18, 17, 16 Note:1.) The above tolerance ...