GD&T Reference

GD&T Reference
  • Form Tolerance, Never References Datum
  • Straightness
  • Flatness
  • Circularity (Roundness)
  • Cylindricity
  • Profile Tolerance, May Reference Datum
  • Profile of a Line
  • Profile of a Surface
  • Orientation Tolerance, Always References Datum
  • Angularity
  • Perpendicularity
  • Parallelism
  • Location Tolerance, Always References Datum
  • Position
  • Concentricity
  • Symmetry
  • Runout Tolerance, Always References Datum
  • Runout Circular
  • Runout Total
  • Common Symbols
  • Feature Control Frame
  • Diameter
  • Radius
  • Basic Dimension
  • Datum Feature
  • Reference Dimension
  • Number of Places
  • Modifiers
  • Maximum Material Condition
  • Least Material Condition
  • Projected Tolerance Zone
  • Free State
  • Tolerance Zone
  • Statistical Tolerance
  • Between
  • Other Symbols
  • Spherical Diameter
  • Controlled Radius
  • Spherical Radius
  • Datum Target
  • Datum Target
  • Target Point
  • Dimension Origin
  • Reference Dimension
  • Number of Places
  • Counterbore (Spotface)
  • Countersink
  • Depth
  • Square
  • All Around
  • Dimension Not to Scale
  • Arc Length
  • Slope
  • Conical Taper

CLICK TO VIEW

Heli-Coil drilling data – inch/mm

UNIFIED COARSE

Nominal Thread Size Suggested Drill Size “F” MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH
Plug Taps Bottoming Taps
Aluminum Steel, Magnesium, Plastic
Drill Size Drill in Drill Size Drill In 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia. 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia.
1 -64 #47 0.0785 #46 0.0810 0.203 0.24 0.276 0.313 0.349 0.136 0.172 0.209 0.245 0.282
2 -56 3/32 0.0938 #41 0.0960 0.236 0.279 0.322 0.365 0.408 0.157 0.2 0.243 0.286 0.329
3-48 #36 0.1065 7/64 0.1094 0.273 0.323 0.372 0.422 0.471 0.182 0.232 0.281 0.331 0.38
4 -40 #31 0.1200 #31 0.1200 0.318 0.374 0.43 0.486 0.542 0.212 0.268 0.324 0.38 0.436
5 -40 3.4mm 0.1339 #29 0.1360 0.338 0.4 0.462 0.525 0.588 0.225 0.288 0.35 0.412 0.475
6-32 #26 0.1470 #25 0.1495 0.394 0.464 0.532 0.602 0.67 0.263 0.332 0.401 0.47 0.539
8 -32 #17 0.1730 #16 0.1770 0.434 0.516 0.598 0.68 0.762 0.289 0.371 0.453 0.535 0.617
10 -24 13/64 0.2031 #5 0.2055 0.535 0.63 0.725 0.82 0.915 0.357 0.452 0.547 0.642 0.737
12 -24 #1 0.2280 #1 0.2280 0.574 0.682 0.79 0.898 1.006 0.383 0.491 0.599 0.707 0.815
1/4 -20 H 0.2660 H 0.2660 0.675 0.8 0.925 1.05 1.175 0.45 0.575 0.7 0.825 0.95
5/16-18 Q 0.3320 Q 0.3320 0.801 0.957 1.113 1.269 1.425 0.534 0.69 0.846 1.002 1.158
3/8 -16 X 0.3970 X 0.3970 0.75 0.938 1.125 1.312 1.5 0.625 0.812 1 1.188 1.375
7/16 -14 29/64 0.4531 29/64 0.4531 0.867 1.086 1.305 1.524 1.743 0.724 0.943 1.162 1.381 1.6
1/2 -13 33/64 0.5156 17/32 0.5312 0.962 1.212 1.462 1.712 1.962 0.808 1.058 1.308 1.558 1.808
9/16 -12 37/64 0.5781 19/32 0.5938 1.062 1.343 1.624 1.905 2.186 0.895 1.176 1.457 1.738 2.019
5/8-11 21/32 0.6562 21/32 0.6562 1.17 1.483 1.795 2.108 2.42 0.989 1.301 1.614 1.926 2.239
3/4 -10 25/32 0.7812 25/32 0.7812 1.35 1.725 2.1 2.475 2.85 1.15 1.525 1.9 2.275 2.65
7/8 -9 29/32 0.9062 29/32 0.9062 1.542 1.979 2.417 2.854 3.292 1.319 1.757 2.194 2.632 3.069
1 -8 1-1/32 1.0312 1-1/32 1.0312 1.75 2.25 2.75 3.25 3.75 1.5 2 2.5 3 3.5
1-1/8-7 1-11/64 1.1719 1-11/64 1.1719 1.982 2.545 3.107 3.67 4.232 1.696 2.259 2.821 3.384 3.946
1-1/4   - 7 1-19/64 1.2969 1-19/64 1.2969 2.107 2.732 3.357 3.982 4.607 1.821 2.446 3.071 3.696 4.321
1-3/8 -6 1-27/64 1.4219 1-27/64 1.4219 2.375 3.062 3.75 4.437 5.125 2.042 2.729 3.417 4.104 4.792
1-1/2-6 1-35/64 1.5469 1-35/64 1.5469 2.5 3.25 4 4.75 5.5 2.167 2.917 3.667 4.417 5.167

UNIFIED FINE

Nominal Thread Size Suggested Drill Size “F” MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH
Plug Taps Bottoming Taps
Aluminum Steel, Magnesium, Plastic
Drill Size Drill in Drill Size Drill In 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia. 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia.
2-64 2.35mm 0.0925 2.35mm 0.0925 0.223 0.266 0.309 0.352 0.395 0.149 0.192 0.235 0.278 0.321
3 -56 #37 0.104 #36 0.1065 0.256 0.305 0.355 0.404 0.454 0.17 0.22 0.269 0.319 0.368
4 -48 3mm 0.1181 #31 0.1200 0.293 0.349 0.405 0.461 0.517 0.195 0.251 0.307 0.363 0.419
6-40 #26 0.147 #25 0.1495 0.357 0.426 0.495 0.564 0.633 0.238 0.307 0.376 0.445 0.514
8 -36 #17 0.173 #16 0.1770 0.413 0.495 0.577 0.659 0.741 0.275 0.357 0.439 0.521 0.603
10 -32 #7 0.201 13/64 0.2031 0.472 0.568 0.662 0.758 0.852 0.315 0.41 0.505 0.6 0.695
1/4 -28 G 0.261 6.7mm 0.2638 0.589 0.714 0.839 0.964 1.089 0.393 0.518 0.643 0.768 0.893
5/16 -24 21/64 0.3281 21/64 0.3281 0.718 0.874 1.03 1.186 1.342 0.479 0.635 0.791 0.947 1.103
3/8 -24 25/64 0.3906 25/64 0.3906 0.625 0.812 1 1.187 1.375 0.542 0.729 0.917 1.104 1.292
7/16 -20 29/64 0.4531 29/64 0.4531 0.738 0.957 1.176 1.395 1.614 0.638 0.857 1.076 1.295 1.514
1/2-20 33/64 0.5156 33/64 0.5156 0.8 1.05 1.3 1.55 1.8 0.7 0.95 1.2 1.45 1.7
9/16-18 37/64 0.5781 37/64 0.5781 0.895 1.176 1.457 1.738 2.019 0.784 1.065 1.346 1.627 1.908
5/8-18 41/64 0.6406 41/64 0.6406 0.958 1.271 1.583 1.896 2.208 0.847 1.16 1.472 1.785 2.097
3/4-16 49/64 0.7656 49/64 0.7656 1.125 1.5 1.875 2.25 2.625 1 1.375 1.75 2.125 2.5
7/8-14 57/64 0.8906 57/64 0.8906 1.304 1.741 2.179 2.616 3.054 1.161 1.598 2.036 2.473 2.911
1-14 1-1/64 1.0156 1-1/32 1.0312 1.429 1.929 2.429 2.929 3.429 1.286 1.786 2.286 2.786 3.286
1 -12 1-1/64 1.0156 1-1/32 1.0312 1.5 2 2.5 3 3.5 1.333 1.833 2.333 2.833 3.333
1-1/8-12 1-9/64 1.1406 1-5/32 1.1562 1.625 2.187 2.75 3.312 3.875 1.458 2.021 2.583 3.146 3.708
1-1/4 -12 1-17/64 1.2656 1-9/32 1.2812 1.75 2.375 3 3.625 4.25 1.583 2.208 2.833 3.458 4.083
1-3/8 -12 1-25/64 1.3906 1-13/32 1.4062 1.875 2.562 3.25 3.937 4.625 1.708 2.396 3.083 3.771 4.458
1-1/2 -12 1-33/64 1.5156 1-17/32 1.5312 2 2.75 3.5 4.25 5 1.833 2.583 3.333 4.083 4.833

METRIC COARSE

Nominal Thread Size Suggested Drill Size   “F” MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH
Aluminum Steel, Magnesium, Plastic Plug Taps Bottoming Taps
Drill Size Drill In Drill Size Drill In 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia. 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia.
M2X0.4 2.1 0.0827 2.1 0.0827 5.4 6.4 7.4 8.4 9.4 3.6 4.6 5.6 6.6 7.6
M2.2x0.45 2.3 0.0906 2.35 0.0925 6 7.1 8.2 9.3 10.4 4 5.1 6.2 7.3 8.4
M2.5x0.45 2.55 0.1004 2.65 0.1043 6.45 7.7 8.95 10.2 11.45 4.3 5.55 6.8 8.05 9.3
M3x0.5 3.15 0.1240 3.2 0.1260 7.5 9 10.5 12 13.5 5 6.5 8 9.5 11
M3.5x0.6 3.7 0.1457 3.7 0.1457 8.85 10.6 12.35 14.1 15.85 5.9 7.65 9.4 11.15 12.9
M4x0.7 4.2 0.1654 4.25 0.1673 10.2 12.2 14.2 16.2 18.2 6.8 8.8 10.8 12.8 14.8
M5x0.8 5.2 0.2047 5.3 0.2087 12.3 14.8 17.3 19.8 22.3 8.2 10.7 13.2 15.7 18.2
M6x1 6.25 0.2461 6.3 0.2480 15 18 21 24 27 10 13 16 19 22
M7x1 7.25 0.2854 7.3 0.2874 16.5 20 23.5 27 30.5 11 14.5 18 21.5 25
M8x1.25 8.3 0.3268 8.4 0.3307 19.5 23.5 27.5 31.5 35.5 13 17 21 25 29
M10x1.5 10.5 0.4134 10.5 0.4134 19 24 29 34 39 16 21 26 31 36
M12x1.75 12.5 0.4921 12.5 0.4921 22.5 28.5 34.5 40.5 46.5 19 25 31 37 43
M14x2 14.5 0.5709 14.5 0.5709 26 33 40 47 54 22 29 36 43 50
M16x2 16.5 0.6496 16.5 0.6496 28 36 44 52 60 24 32 40 48 56
M18x2.5 18.75 0.7382 18.75 0.7382 33 42 51 60 69 28 37 46 55 64
M20x2.5 20.75 0.8169 20.75 0.8169 35 45 55 65 75 30 40 50 60 70
M22x2.5 22.75 0.8957 22.75 0.8957 37 48 59 70 81 32 43 54 65 76
M24x3 24.75 0.9744 24.75 0.9744 42 54 66 78 90 36 48 60 72 84
M27x3 27.75 1.0925 27.75 1.0925 45 58.5 72 85.5 99 39 52.5 66 79.5 93
M30x3.5 31 1.2205 31 1.2205 51 66 81 96 111 44 59 74 89 104
M33x3.5 34 1.3386 34 1.3386 54 70.5 87 103.5 120 47 63.5 80 96.5 113
M36x4 37 1.4567 37 1.4567 60 78 96 114 132 52 70 88 106 124
M39x4 40 1.5748 40 1.5748 63 82.5 102 121.5 141 55 74.5 94 113.5 133

METRIC FINE

Nominal Thread Size Suggested Drill Size “F” MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH
Aluminum Steel, Magnesium, Plastic Plug Taps Bottoming Taps
Drill Size Drill In Drill Size Drill In 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia. 1 Dia. 1-1/2 Dia. 2 Dia. 2-1/2 Dia. 3 Dia.
M8x1 8.25 0.3248 8.3 0.3268 18 22 26 30 34 12 16 20 24 28
M10x1 10.25 0.4035 10.25 0.4035 16 21 26 31 36 14 19 24 29 34
M10x1.25 10.25 0.4035 10.25 0.4035 17.5 22.5 27.5 32.5 37.5 15 20 25 30 35
M12x1.25 12.25 0.4823 12.25 0.4823 19.5 25.5 31.5 37.5 43.5 17 23 29 35 41
M12x1.5 12.25 0.4823 12.5 0.4921 21 27 33 39 45 18 24 30 36 42
M14x1.5 14.25 0.5610 14.5 0.5709 23 30 37 44 51 20 27 34 41 48
M16x1.5 16.25 0.6398 16.5 0.6496 25 33 41 49 57 22 30 38 46 54
M18x1.5 18.25 0.7185 18.5 0.7283 27 36 45 54 63 24 33 42 51 60
M20x1.5 20.25 0.7972 20.5 0.8071 29 39 49 59 69 26 36 46 56 66
M22x1.5 22.25 0.8760 22.5 0.8858 31 42 53 64 75 28 39 50 61 72
M18x2 18.5 0.7283 18.5 0.7283 30 39 48 57 66 26 35 44 53 62
M20x2 20.5 0.8071 20.5 0.8071 32 42 52 62 72 28 38 48 58 68
M22x2 22.5 0.8858 22.5 0.8858 34 45 56 67 78 30 41 52 63 74
M24x2 24.5 0.9646 24.5 0.9646 36 48 60 72 84 32 44 56 68 80
M27x2 27.5 1.0827 27.5 1.0827 39 52.5 66 79.5 93 35 48.5 62 75.5 89
M30x2 30.5 1.2008 30.5 1.2008 42 57 72 87 102 38 53 68 83 98
M33x2 33.5 1.3189 33.5 1.3189 45 61.5 78 94.5 111 41 57.5 74 90.5 107
M36x2 36.5 1.4370 36.5 1.4370 48 66 84 102 120 44 62 80 98 116
M39x2 39.5 1.5551 39.5 1.5551 51 70.5 90 109 129 47 66.5 86 105.5 125
M36x3 37 1.4567 37 1.4567 54 72 90 108 126 48 66 84 102 120
M39x3 40 1.5748 40 1.5748 57 76.5 96 115.5 135 51 70.5 90 109.5 129

 

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Drill Chart imperial/metric

FRACTION INCH NUMBER SIZE LETTER SIZE DECIMAL METRIC DECIMAL INCHES
FRACTION INCH NUMBER SIZE LETTER SIZE DECIMAL METRIC DECIMAL INCHES
  80     0.0135
  79     0.0145
1/64       0.0156
  78     0.0160
  77     0.0180
      0.5 0.0197
  76     0.0200
  75     0.0210
  74     0.0225
  73     0.0240
  72     0.0250
  71     0.0260
  70     0.0280
  69     0.0292
      0.75 0.0295
  68     0.0310
1/32       0.0312
  67     0.0320
  66     0.0330
  65     0.0350
  64     0.0360
  63     0.0370
  62     0.0380
  61     0.0390
      1 0.0394
  60     0.0400
  59     0.0410
  58     0.0420
  57     0.0430
  56     0.0465
3/64       0.0469
      1.25 0.0492
  55     0.0520
  54     0.0550
      1.5 0.0591
  53     0.0595
1/16       0.0625
  52     0.0635
  51     0.0670
      1.75 0.0689
  50     0.0700
  49     0.0730
  48     0.0760
5/64       0.0781
  47     0.0785
      2 0.0787
  46     0.0810
  45     0.0820
  44     0.0860
      2.25 0.0886
  43     0.0890
  42     0.0935
3/32       0.0938
  41     0.0960
  40     0.0980
      2.5 0.0984
  39     0.0995
  38     0.1015
  37     0.1040
  36     0.1065
      2.75 0.1083
7/64       0.1094
  35     0.1100
  34     0.1110
  33     0.1130
  32     0.1160
      3 0.1181
  31     0.1200
1/8       0.1250
      3.25 0.1280
  30     0.1285
  29     0.1360
      3.5 0.1378
  28     0.1405
9/64       0.1406
  27     0.1440
  26     0.1470
      3.75 0.1476
  25     0.1495
  24     0.1520
  23     0.1540
5/32       0.1562
  22     0.1570
      4 0.1575
  21     0.1590
  20     0.1610
  19     0.1660
      4.25 0.1673
  18     0.1695
11/64       0.1719
  17     0.1730
  16     0.1770
      4.5 0.1772
  15     0.1800
  14     0.1820
  13     0.1850
      4.75 0.1870
3/16       0.1875
  12     0.1890
  11     0.1910
  10     0.1935
  9     0.1960
      5 0.1969
  8     0.1990
  7     0.2010
13/64       0.2031
  6     0.2040
  5     0.2055
      5.25 0.2067
  4     0.2090
  3     0.2130
      5.5 0.2165
7/32       0.2188
  2     0.2210
      5.75 0.2264
  1     0.2280
    A   0.2340
15/64       0.2344
      6 0.2362
    B   0.2380
    C   0.2420
    D   0.2460
      6.25 0.2461
1/4   E   0.2500
      6.5 0.2559
    F   0.2570
    G   0.2610
17/64       0.2656
      6.75 0.2657
    H   0.2660
    I   0.2720
      7 0.2756
    J   0.2770
    K   0.2810
9/32       0.2812
      7.25 0.2854
    L   0.2900
    M   0.2950
      7.5 0.2953
19/64       0.2969
    N   0.3020
      7.75 0.3051
5/16       0.3125
      8 0.3150
    O   0.3160
    P   0.3230
      8.25 0.3248
21/64       0.3281
    Q   0.3320
      8.5 0.3346
    R   0.3390
11/32       0.3438
      8.75 0.3445
    S   0.3480
      9 0.3543
    T   0.3580
23/64       0.3594
      9.25 0.3642
    U   0.3680
      9.5 0.3740
3/8       0.3750
     V   0.3770
      9.75 0.3839
    W   0.3860
25/64       0.3906
      10 0.3937
    X   0.3970
    Y   0.4040
13/32       0.4063
    Z   0.4130
      10.5 0.4134
27/64       0.4219
      11 0.4331
7/16       0.4375
      11.5 0.4528
29/64       0.4531
15/32       0.4688
      12 0.4724
31/64       0.4844
      12.5 0.4921
1/2       0.5000
      13 0.5118
33/64       0.5156
17/32       0.5312
      13.5 0.5315
35/64       0.5469
      14 0.5512
9/16       0.5625
      14.5 0.5709
37/64       0.5781
      15 0.5906
19/32       0.5938
39/64       0.6094
      15.5 0.6102
5/8       0.6250
      16 0.6299
41/64       0.6406
      16.5 0.6496
21/32       0.6562
      17 0.6693
43/64       0.6719
11/16       0.6875
      17.5 0.6890
45/64       0.7031
      18 0.7087
23/32       0.7188
      18.5 0.7283
47/64       0.7344
      19 0.7480
3/4       0.7500
49/64       0.7656
      19.5 0.7677
25/32       0.7813
      20 0.7874
 51/64       0.7969
      20.5 0.8071
13/16       0.8125
      21 0.8268
53/64       0.8281
27/32       0.8438
      21.5 0.8465
55/64       0.8594
      22 0.8661
7/8       0.8750
      22.5 0.8858
57/64       0.8906
      23 0.9055
29/32       0.9062
59/64       0.9219
      23.5 0.9252
15/16       0.9375
      24 0.9449
61/64       0.9531
      24.5 0.9646
31/32       0.9688
      25 0.9843
63/64       0.9844
1       1.0000
CLICK TO VIEW

Pipe Tap Drill Chart

- American Standard British Standard
Size Threads
per inch
NPT NPS Threads
per inch
Drill size
1/16 27 D 1/4 28 G
1/8 27 R S 28 11/32
1/4 18 7/16 29/64 19 15/32
3/8 18 37/64 19/32 19 39/64
1/2 14 23/32 47/64 14 3/4
5/8 - - - 14 53/64
3/4 14 59/64 15/16 14 31/32
7/8 - - - 14 1-7/64
1 11.5 1-5/32 1-3/16 11 1-7/32
CLICK TO VIEW

Metric Tap Drill Chart

Tap size Tap Drill
(mm)
Tap Drill
(inch)
Clearance
(mm)
Clearance
(inch)
Tap size Tap Drill
(mm)
Tap Drill
(inch)
Clearance
(mm)
Clearance
(inch)
M1.6x0.35 1.25 #55 1.8 #49
M2x0.4 1.60 #52 2.4 #41
M2.5x0.45 2.05 #46 2.9 #32
M3x.05 2.50 #39 3.4 #29
M3.5x0.6 2.90 #32 3.9 #23
M4x0.7 3.30 #30 4.5 #16
M5x0.8 4.20 #19 5.5 7/32
M6x1 5.0 #8 6.6 G
M8x1.25 6.8 H 9.0 T
M8x1 7.0 J 9.0 T
M10x1.5 8.5 R 12.0 31/64
M10x1.25 8.8 11/32 12.0 31/64
M12x1.75 10.2 13/32 14.0 35/64
M12x1.25 10.8 27/64 14.0 35/64
M14x2 12.0 15/32 16.0 5/8
M14x1.5 12.5 1/2 16.0 5/8
M16x2 14.0 35/64 18.0 45/64
M16x1.5 14.5 37/64 18.0 45/64
M18x2.5 15.5 39/64 20.0 51/64
M18x1.5 16.5 21/32 20.0 51/64
M20x2.5 17.5 11/16 22.0 7/8
M20x1.5 18.5 47/64 22.0 7/8
M22x2.5 19.5 49/64 25.0 1
M22x1.5 20.5 13/16 25.0 1
M24x3 21.0 53/64 27.0 1-5/64
M24x2 22.0 7/8 27.0 1-5/64
M27x3 24.0 15/16 30.0 1-3/16
M27x2 25.0 1 30.0 1-3/16
CLICK TO VIEW

Imperial Tap Drill Chart

No or Dia. TPI Min. Dia. Maj. Dia. Drill Size Decimal Clear Hole Decimal
No or Dia. TPI Min. Dia. Maj. Dia. Drill Size Decimal Clear Hole Decimal
0 80 .0447 .0600 3/64 .0469 50 .0700
1 64 .0538 .0730  53 .0595 46 .0810
72 .0560 53 .0595
2 56 .0641 .0860  50 .0700 41 .0960
64 .0668 50 .0700
3 48 .0734 .0990  47 .0785 35 .1100
56 .0771 45 .0820
4 40 .0813 .1120  43 .0890 30 .1285
48 .0864 42 .0935
5 40 .0943 .1250  38 .1015 29 .1360
44 .0971 37 .1040
6 32 .0997 .1380  36 .1065 25 .1495
40 .1073 33 .1130
8 32 .1257 .1640  29 .1360 16 .1770
36 .1299 29 .1360
10 24 .1389 .1900  25 .1495 7 .2010
32 .1517 21 .1590
12 24 .1649 .2160   16 .1770 1 .2280
28 .1722 14 .1820
32 .1777 13 .1850
1/4 20 .1887 .2500   7 .2010 H .2660
28 .2062 3 .2130
32 .2117 7/32 .2188
5/16 18 .2443 .3125   F .2570 Q .3320
24 .2614 I .2720
32 .2742 9/32 .2812
3/8 16 .2983 .3750   5/16 .3125 X .3970
24 .3239 Q .3320
32 .3367 11/32 .3438
7/16 14 .3499 .4375   U .3680 15/32 .4687
20 .3762 25/64 .3906
28 .3937 Y .4040
1/2 13 .4056 .5000   27/64 .4219 17/32 .5312
20 .4387 29/64 .4531
28 .4562 15/32 .4688
9/16 12 .4603 .5625   31/64 .4844 19/32 .5938
18 .4943 33/64 .5156
24 .5114 33/64 .5156
5/8 11 .5135 .6250   17/32 .5312 21/32 .6562
18 .5568 37/64 .5781
24 .5739 37/64 .5781
11/16 24 .6364 .6875 41/64 .6406 23/32 .7188
3/4 10 .6273 .7500   21/32 .6562 25/32 .7812
16 .6733 11/16 .6875
20 .6887 45/64 .7031
1-3/16 20 .7512 .8125 49/64 .7656 27/32 .8438
7/8 9 .7387 .8750   49/64 .7656 29/32 .9062
14 .7874 13/16 .8125
20 .8137 53/64 .8281
15/16 20 .8762 .9375 57/64 .8906 31/32 .9688
1 8 .8466 1.000   7/8 .8750 1-1/32 1.0313
12 .8978 15/16 .9375
20 .9387 61/64 .9531
1-1/16 18 .9943 1.0625 1.000 1.000 1-3/32 1.0938
1-1/8 7 .9497 1.1250   63/64 .9844 1-5/32 1.1562
12 1.0228 1-3/64 1.0469
18 1.0568 1-1/16 1.0625
1-3/16 18 1.1193 1.1875 1-1/8 1.1250 1-7/32 1.2188
1-1/4 7 1.0747 1.2500   1-7/64 1.1094 1-9/32 1.2812
12 1.1478 1-11/64 1.1719
18 1.1818 1-3/16 1.1875
1-5/16 18 1.2443 1.3125 1-1/4 1.2500 1-11/32 1.3438
1-3/8 6 1.1705 1.3750   1-7/32 1.2187 1-13/32 1.4062
12 1.2728 1-19/64 1.2969
18 1.3068 1-5/16 1.3125
1-7/16 18 1.3693 1.4375 1-3/8 1.3750 1-15/32 1.4688
1-1/2 6 1.2955 1.500   1-11/32 1.3437 1-17/32 1.5312
12 1.3978 1-27/64 1.4219
18 1.4318 1-7/16 1.4375
1-9/16 18 1.4943 1.5625 1-12 1.500 1-19/32 1.5938
1-5/8 18 1.5568 1.625 1-9/16 1.5625 1-21/32 1.6562
1-11/16 18 1.6193 1.6875 1-5/8 1.6250 1-23/32 1.7188
1-3/4 5 1.5046 1.750 1-9/16 1.5625 1-25/32 1.7812
CLICK TO VIEW
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