圆周等分尺寸计算(钻孔)

等分数系数K34567101112131415161718192021222324250.8660.70710.58780.50.43390.38270.3420.3090.28170.25880.23930.22250.20790.19510.18380.17370.160.150.1490.14230.13620.13050.1253等分数2627282930313233343536373839404142434447484950系数K等分数系数K等分数系数K0.1205510.0616760.04130.1161520.0604770.04080.112530.0592780.04030.10810.0581790.03980.1045550.0571800.03930.1012560.0561810.03880.098570.0551820.03830.0951580.01830.03780.0923590.0532840.03740.06600.0523850.0370.0872610.0515860.03650.0848620.0506870.03610.0826630.0498880.03570.08050.04910.03530.0785650.0483900.03490.0765660.0476910.03450.0747670.0469920.03410.073680.0462930.03380.0713690.0455940.03340.0698700.0449950.03310.0682710.0442960.03270.0668720.0436970.03240.06730.043980.03210.01740.0424990.03170.0628750.04191000.0314