材质 
#6
32|40
0.312
0.302
0.361
0.342
0.422
0.406
0.171
0.156
#8
32|36
0.344
0.334
0.397
0.381
0.469
0.452
0.203
0.187
#10
24|32
0.375
0.365
0.433
0.416
0.5
0.48
0.219
0.203
#12
24|28|32
0.438
0.428
0.505
0.488
0.954
0.574
0.236
0.222
1/4
20|28|32
0.438
0.428
0.505
0.488
0.954
0.574
0.236
0.222
5/16
18|24|32
0.5
0.489
0.577
0.557
0.68
0.66
0.283
0.268
3/8
16|24|32
0.562
0.551
0.65
0.628
0.75
0.728
0.347
0.33
7/16
14|20|28
0.688
0.675
0.794
0.768
0.937
0.91
0.395
0.375
1/2
13|20|28
0.75
0.736
0.866
0.84
1.031
1
0.458
0.437
9/16
12|18|24
0.875
0.861
1.01
0.982
1.188
1.155
0.506
0.483
5/8
11|18|24
0.938
0.922
1.083
1.051
1.281
1.248
0.569
0.515
3/4
10|16|20
1.125
1.088
1.299
1.24
1.5
1.46
0.675
0.627