材质 
1/2
13
0.5
0.482
0.875
0.85
1.01
0.969
0.323
0.302
5/8
11
0.625
0.605
1.062
1.031
1.227
1.175
0.403
0.378
3/4
10
0.75
0.729
1.25
1.212
1.443
1.383
0.483
0.455
7/8
9
0.875
0.852
1.438
1.394
1.66
1.589
0.563
0.531
1
8
1
0.976
1.625
1.575
1.876
1.796
0.627
0.591
1-1/8
7
1.125
1.098
1.812
1.756
2.093
2.002
0.718
0.658
1-1/4
7
1.25
1.223
2
1.938
2.309
2.209
0.813
0.749
1-3/8
6
1.375
1.345
2.188
2.119
2.526
2.416
0.878
0.81
1-1/2
6
1.5
1.47
2.375
2.3
2.742
2.622
0.974
0.902
1-3/4
5
1.75
1.716
2.75
2.662
3.175
3.035
1.134
1.054
2
4.5
2
1.964
3.125
3.025
3.608
3.449
1.263
1.175
2-1/4
4.5
2.25
2.214
3.5
3.388
4.041
3.862
1.423
1.327
2-1/2
4
2.5
2.461
3.875
3.75
4.474
4.275
1.583
1.479
2-3/4
4
2.75
2.711
4.25
4.112
4.907
4.688
1.744
1.632
3
4
3
2.961
4.625
4.475
5.34
5.102
1.935
1.815