TECHNICAL DATA

Metric Input?
Data Input
Bit Size inches
Mud Wt ppg
Flow gpm
Data Output
Standard Units Metric Units
Bit Pressure drop = 0 psi 0 bar
Jet Velocity = 1 ft/sec 0.39 m/sec
Impact Force = 0 lbs 0.01 kg
Hydraulic Horsepower = 0 0
H.S.I. = 0 0
Nozzle Size TFA Flow
Nozzle 1
Nozzle 2
Nozzle 3
Nozzle 4
Nozzle 5
Nozzle 6
Nozzle 7
Nozzle 8
Nozzle 9
Nozzle 10
TFA =
With water base mud, to optimum hydraulic:
Should have >250ft/sec jet velocity, H.S.I> 3
Inches 36″ 28″ 26″ 24″ 23″ 22″ 20″
Meters 914.4 mm 711.2 mm 660.4 mm 609.6 mm 584.2 mm 558.8 mm 508.0 mm
Inches 17 1/2″ 17 1/4″ 16″ 15 1/2″ 15″ 14 3/4″ 14 1/2″
Meters 444.5 mm 438.2 mm 406.4 mm 393.7 mm 381.0 mm 374.6 mm 368.3 mm
Inches 13 3/4″ 13 1/2″ 12 1/2″ 12 1/4″ 12″ 11 5/8″ 11″
Meters 349.2 mm 342.0 mm 137.5 mm 311.1 mm 304.8 mm 295.3 mm 279.4 mm
Inches 10 5/8″ 10 1/4″ 10″ 9 7/8″ 9 5/8″ 9 1/2″ 8 3/4″
Meters 269.9 mm 260.3 mm 254.0 mm 250.8 mm 244.5 mm 241.3 mm 222.2 mm
Inches 8 1/2″ 8 3/8″ 7 7/8″ 7 5/8″ 7 1/2″ 7 3/8″ 6 3/4″
Meters 215.9 mm 212.7 mm 200.0 mm 193.7 mm 190.5 mm 187.3 mm 171.4 mm
Inches 6 5/8″ 6 1/2″ 6 1/4″ 6 1/8″ 6″ 5 7/8″ 5 3/4″
Meters 166.3 mm 165.1 mm 158.7 mm 155.6 mm 152.4 mm 149.2 mm 146.0 mm
Inches 5 5/8″ 5 1/2″ 5 3/16″ 5 1/8″ 5″ 4 7/8″ 4 3/4″
Meters 142.9 mm 139.7 mm 131.8 mm 130.6 mm 127.0 mm 123.8 mm 120.6 mm
Inches 4 5/8″ 4 1/2″ 4 7/16″ 4 1/4″ 4 1/8″ 4″ 3 7/8″
Meters 117.5 mm 114.3 mm 112.7 mm 108.0 mm 104.8 mm 101.6 mm 98.4 mm
Inches 3 3/4″ 3 5/8″ 3 1/2″ 3 1/8″ 3″ 2 15/16″ 2 7/8″
Meters 95.2 mm 92.1 mm 88.9 mm 79.4 mm 76.2 mm 74.6 mm 73.0 mm
Inches 2 5/8″ 2 1/2″
Meters 66.7 mm 63.5 mm
Casing Bit
Outside diameter Weight Inside diameter Drift Size Clearance Weight
inch mm lb/ft kg/m inch mm inch mm inch mm lbs kg
4 1/2 114.3 9.5 14.13752 4.090 103.886 3.965 100.711 3 7/8 98.425 0.090 10 4.536
4 1/2 114.3 11.6 17.262656 4.000 101.6 3.875 98.425 3 7/8 98.425 0.000 10 4.536
4 1/2 114.3 13.5 20.09016 3.920 99.568 3.795 96.393 3 3/4 95.25 0.045 10 4.536
4 1/2 114.3 15.1 22.471216 3.826 97.1804 3.701 94.0054 3 5/8 92.075 0.076 10 4.536
5 127 11.5 17.11384 4.560 115.824 4.435 112.649 4 1/4 107.95 0.185 11 4.9896
5 127 13 19.34608 4.494 114.1476 4.369 110.9726 4 1/4 107.95 0.119 11 4.9896
5 127 15 22.3224 4.408 111.9632 4.283 108.7882 4 1/4 107.95 0.033 11 4.9896
5 127 18 26.78688 4.276 108.6104 4.151 105.4354 4 1/8 104.775 0.026 11 4.9896
5 1/2 139.7 13 19.34608 5.044 128.1176 4.919 124.9426 4 3/4 120.65 0.169 16 7.2576
5 1/2 139.7 14 20.83424 5.012 127.3048 4.887 124.1298 4 3/4 120.65 0.137 16 7.2576
5 1/2 139.7 15.5 23.06648 4.950 125.73 4.825 122.555 4 3/4 120.65 0.075 16 7.2576
5 1/2 139.7 17 25.29872 4.892 124.2568 4.767 121.0818 4 3/4 120.65 0.017 16 7.2576
5 1/2 139.7 20 29.7632 4.778 121.3612 4.653 118.1862 4 5/8 117.475 0.028 16 7.2576
5 1/2 139.7 23 34.22768 4.670 118.618 4.545 115.443 4 1/2 114.3 0.045 12 5.4432
6 152.4 15 22.3224 5.524 140.3096 5.399 137.1346 5 3/8 136.525 0.024 25 11.34
6 152.4 18 26.78688 5.425 137.795 5.299 134.5946 5 1/8 130.175 0.174 25 11.34
6 152.4 20 29.7632 5.352 135.9408 5.277 134.0358 5 1/8 130.175 0.102 25 11.34
6 152.4 23 34.22768 5.240 133.096 5.115 129.921 4 7/8 123.825 0.240 16 7.2576
6 152.4 26 38.69216 5.132 130.3528 5.007 127.1778 4 7/8 123.825 0.132 16 7.2576
6 5/8 168.275 17 25.29872 6.135 155.829 6.010 152.654 6 152.4 0.010 28 12.7008
6 5/8 168.275 20 29.7632 6.049 153.6446 5.924 150.4696 5 7/8 149.225 0.049 26 11.7936
6 5/8 168.275 24 35.71584 5.921 150.3934 5.976 151.7904 5 3/4 146.05 0.046 25 11.34
6 5/8 168.275 28 41.66848 5.791 147.0914 5.666 143.9164 5 5/8 142.875 0.041 25 11.34
6 5/8 168.275 32 47.62112 5.675 144.145 5.550 140.97 5 3/8 136.525 0.175 25 11.34
7 177.8 17 25.29872 6.538 166.0652 6.413 162.8902 6 3/8 161.925 0.038 29 13.1544
7 177.8 20 29.7632 6.456 163.9824 6.331 160.8074 6 1/4 158.75 0.081 28 12.7008
7 177.8 23 34.22768 6.366 161.6964 6.241 158.5214 6 1/8 155.575 0.116 28 12.7008
7 177.8 26 38.69216 6.276 159.4104 6.151 156.2354 6 1/8 155.575 0.026 28 12.7008
7 177.8 29 43.15664 6.184 157.0736 6.059 153.8986 6 152.4 0.059 26 11.7936
7 177.8 32 47.62112 6.094 154.7876 5.969 151.6126 5 7/8 149.225 0.094 26 11.7936
7 177.8 35 52.0856 6.004 152.5016 5.879 149.3266 5 7/8 149.225 0.004 25 11.34
7 177.8 38 56.55008 5.920 150.368 5.795 147.193 5 3/4 146.05 0.045 37 16.7832
7 5/8 193.675 20 29.7632 7.125 180.975 7.000 177.8 6 3/4 171.45 0.250 37 16.7832
7 5/8 193.675 24 35.71584 7.025 178.435 6.900 175.26 6 3/4 171.45 0.150 37 16.7832
7 5/8 193.675 26.4 39.287424 6.969 177.0126 6.844 173.8376 6 3/4 171.45 0.094 37 16.7832
7 5/8 193.675 29.7 44.198352 6.875 174.625 6.750 171.45 6 3/4 171.45 0.000 32 14.5152
7 5/8 193.675 33.7 50.150992 6.765 171.831 6.640 168.656 6 5/8 168.275 0.015 29 13.1544
7 5/8 193.675 39 58.03824 6.625 168.275 6.500 165.1 6 3/8 161.925 0.125 60 27.216
8 5/8 219.075 24 35.71584 8.097 205.6638 7.972 202.4888 7 7/8 200.025 0.097 60 27.216
8 5/8 219.075 28 41.66848 8.017 203.6318 7.982 202.7428 7 7/8 200.025 0.017 58 26.3088
8 5/8 219.075 32 47.62112 7.921 201.1934 7.796 198.0184 7 3/4 196.85 0.046 58 26.3088
8 5/8 219.075 36 53.57376 7.825 198.755 7.700 195.58 7 5/8 193.675 0.075 43 19.5048
8 5/8 219.075 40 59.5264 7.725 196.215 7.600 193.04 7 3/8 187.325 0.225 43 19.5048
8 5/8 219.075 44 65.47904 7.625 193.675 7.500 190.5 7 3/8 187.325 0.125 43 19.5048
8 5/8 219.075 49 72.91984 7.511 190.7794 7.386 187.6044 7 3/8 187.325 0.011 43 19.5048
9 5/8 244.475 29.3 43.603088 9.063 230.2002 8.907 226.2378 8 3/4 222.25 0.157 74 33.5664
9 5/8 244.475 32.3 48.067568 9.001 228.6254 8.845 224.663 8 3/4 222.25 0.095 74 33.5664
9 5/8 244.475 36 53.57376 8.921 226.5934 8.765 222.631 8 3/4 222.25 0.015 74 33.5664
9 5/8 244.475 40 59.5264 8.835 224.409 8.697 220.9038 8 5/8 219.075 0.072 73 33.1128
9 5/8 244.475 43.5 64.73496 8.755 222.377 8.599 218.4146 8 1/2 215.9 0.099 70 31.752
9 5/8 244.475 47 69.94352 8.681 220.4974 8.525 216.535 8 1/2 215.9 0.025 70 31.752
9 5/8 244.475 53.5 79.61656 8.535 216.789 8.379 212.8266 8 3/8 212.725 0.004 74 33.5664
10 3/4 273.05 32.75 48.73724 10.192 258.8768 10.036 254.9144 9 7/8 250.825 0.161 118 53.5248
10 3/4 273.05 40.5 60.27048 10.050 255.27 9.894 251.3076 9 7/8 250.825 0.019 118 53.5248
10 3/4 273.05 45.5 67.71128 9.950 252.73 9.794 248.7676 9 3/4 247.65 0.044 112 50.8032
10 3/4 273.05 51 75.89616 9.850 250.19 9.694 246.2276 9 5/8 244.475 0.069 112 50.8032
10 3/4 273.05 55.5 82.59288 9.760 247.904 9.604 243.9416 9 228.6 0.604 75 34.02
10 3/4 273.05 60.7 90.331312 9.660 245.364 9.504 241.4016 9 228.6 0.504 75 34.02
10 3/4 273.05 65.7 97.772112 9.560 242.824 9.404 238.8616 9 228.6 0.404 75 34.02
11 3/4 298.45 38 56.55008 11.150 283.21 10.994 279.2476 10 5/8 269.875 0.369 140 63.504
11 3/4 298.45 42 62.50272 11.084 281.5336 10.928 277.5712 10 5/8 269.875 0.303 140 63.504
11 3/4 298.45 47 69.94352 11.000 279.4 10.844 275.4376 10 5/8 269.875 0.219 140 63.504
11 3/4 298.45 54 80.36064 10.880 276.352 10.724 272.3896 10 5/8 269.875 0.099 140 63.504
11 3/4 298.45 60 89.2896 10.772 273.6088 10.616 269.6464 9 7/8 250.825 0.741 118 53.5248
13 3/8 339.725 48 71.43168 12.715 322.961 12.559 318.9986 12 1/4 311.15 0.309 181 82.1016
13 3/8 339.725 54.5 81.10472 12.615 320.421 12.459 316.4586 12 1/4 311.15 0.209 181 82.1016
13 3/8 339.725 61 90.77776 12.515 317.881 12.359 313.9186 12 1/4 311.15 0.109 181 82.1016
13 3/8 339.725 68 101.19488 12.415 315.341 12.259 311.3786 12 1/4 311.15 0.009 181 82.1016
13 3/8 339.725 72 107.14752 12.374 314.2996 12.191 309.6514 10 254 2.191 135 61.236
16 406.4 55 81.8488 15.375 390.525 15.188 385.7752 15 381 0.188 325 147.42
16 406.4 65 96.7304 12.250 311.15 15.062 382.5748 15 381 0.062 325 147.42
16 406.4 75 111.612 15.125 384.175 14.938 379.4252 14 3/4 374.65 0.188 325 147.42
16 406.4 84 125.00544 15.010 381.254 14.823 376.5042 14 3/4 374.65 0.073 325 147.42
20 508 94 139.88704 19.124 485.7496 18.936 480.9744 17 1/2 444.5 1.436 560 254.016
Nozzle Size 1 Nozzle 2 Nozzles 3 Nozzles 4 Nozzles 5 Nozzles 6 Nozzles 7 Nozzles 8 Nozzles 9 Nozzles 10 Nozzles
7/32 0.0375 0.0751 0.1127 0.1503 0.1879 0.2254 0.2630 0.3006 0.3382 0.3758
8/32 0.0490 0.0981 0.1472 0.1963 0.2454 0.2945 0.3436 0.3926 0.4417 0.4908
9/32 0.0621 0.1242 0.1863 0.2485 0.3106 0.3727 0.4348 0.4970 0.5591 0.6212
10/32 0.0766 0.1533 0.2300 0.3067 0.3834 0.4601 0.5368 0.6135 0.6902 0.7669
11/32 0.0928 0.1856 0.2784 0.3712 0.4640 0.5568 0.6496 0.7424 0.8352 0.9280
12/32 0.1104 0.2208 0.3313 0.4417 0.5522 0.6626 0.7731 0.8835 0.9940 1.1044
13/32 0.1296 0.2592 0.3888 0.5184 0.6481 0.7777 0.9073 1.0369 1.1665 1.2962
14/32 0.1503 0.3006 0.4509 0.6013 0.7516 0.9019 1.0523 1.2026 1.3529 1.5032
15/32 0.1725 0.3451 0.5177 0.6902 0.8628 1.0354 1.2080 1.3805 1.5531 1.7257
16/32 0.1963 0.3926 0.5890 0.7853 0.9817 1.1780 1.3744 1.5707 1.7671 1.9634
18/32 0.2485 0.4970 0.7455 0.9940 1.2425 1.4910 1.7395 1.9880 2.2365 2.4850
20/32 0.3067 0.6135 0.9203 1.2271 1.5339 1.8407 2.1475 2.4543 2.7611 3.0679
22/32 0.3712 0.7424 1.1136 1.4848 1.8561 2.2273 2.5985 2.9697 3.3410 3.7122
24/32 0.4417 0.8835 1.3253 1.7671 2.2089 2.6507 3.0925 3.5342 3.9760 4.4178
26/32 0.5184 1.0369 1.5554 2.0739 2.5924 3.1109 3.6293 4.1478 4.6663 5.1848
28/32 0.6013 1.2026 1.8039 2.4052 3.0065 3.6079 4.2092 4.8105 5.4118 6.0131
Nom.
size
O.D.
mm
Nom.
lb/ft
WT. T&C
kg/m
Wall thickness Meters /
tonne
Nom.
size
O.D.
mm
Nom
lb/ft
WT. T&C
kg/m
Wall thickness Meters /
tonne
in mm in mm
4-1/2 114.30 9.50 14.14 0.205 5.21 70.72 8-5/8 219.10 24.00 35.72 0.264 6.71 28.00
4-1/2 114.30 10.50 15.63 0.224 5.69 63.98 8-5/8 219.10 28.00 41.67 0.304 7.72 24.00
4-1/2 114.30 11.60 17.26 0.250 6.35 57.94 8-5/8 219.10 32.00 47.62 0.352 8.94 21.00
4-1/2 114.30 13.50 20.09 0.290 7.37 49.78 8-5/8 219.10 36.00 53.57 0.400 10.16 18.67
4-1/2 114.30 15.10 22.47 0.337 8.56 44.50 8-5/8 219.10 40.00 59.53 0.450 11.43 16.80
5 127.00 11.50 17.11 0.220 5.59 59.45 8-5/8 219.10 44.00 65.48 0.500 12.70 15.27
5 127.00 13.00 19.35 0.253 6.43 51.68 8-5/8 219.10 49.00 72.92 0.557 14.15 13.71
5 127.00 15.00 22.32 0.296 7.52 44.80 9-5/8 244.50 32.30 48.07 0.312 7.92 20.80
5 127.00 18.00 26.79 0.362 9.19 37.33 9-5/8 244.50 36.00 53.57 0.352 8.94 18.67
5-1/2 139.70 14.00 20.83 0.244 6.20 48.01 9-5/8 244.50 40.00 59.53 0.395 10.03 16.80
5-1/2 139.70 15.50 23.07 0.275 6.98 43.35 9-5/8 244.50 43.50 64.94 0.435 11.05 15.45
5-1/2 139.70 17.00 25.30 0.304 7.72 39.53 9-5/8 244.50 47.00 69.94 0.472 11.99 14.30
5-1/2 139.70 20.00 29.76 0.361 9.17 33.60 9-5/8 244.50 53.50 79.62 0.545 13.84 12.56
5-1/2 139.70 23.00 34.23 0.415 10.54 29.21 10-3/4 273.00 32.75 48.74 0.279 7.09 20.52
5-3/4 146.05 18.00 26.79 0.303 7.70 37.32 10-3/4 273.00 40.50 60.27 0.350 8.89 16.59
5-3/4 146.05 19.70 29.32 0.335 8.80 34.10 10-3/4 273.00 45.50 67.71 0.400 10.16 14.77
5-3/4 146.05 21.90 32.59 0.374 9.50 30.68 10-3/4 273.00 51.00 75.90 0.450 11.43 13.18
5-3/4 146.05 24.40 36.31 0.421 10.70 27.54 10-3/4 273.00 55.50 82.59 0.495 12.57 12.11
6-5/8 168.30 17.00 25.30 0.245 6.22 39.52 10-3/4 273.00 60.70 90.33 0.545 13.84 11.07
6-5/8 168.30 20.00 29.76 0.288 7.32 33.60 10-3/4 273.00 65.70 97.77 0.595 15.11 10.23
6-5/8 168.30 24.00 35.72 0.352 8.94 28.00 11-3/4 298.40 42.00 62.50 0.333 8.46 16.00
6-5/8 168.30 28.00 41.67 0.417 10.59 24.00 11-3/4 298.40 47.00 69.94 0.375 9.52 14.30
6-5/8 168.30 32.00 47.62 0.475 12.06 21.00 11-3/4 298.40 54.00 80.36 0.435 11.05 12.44
7 177.80 17.00 25.30 0.231 5.97 39.53 11-3/4 298.40 60.00 89.29 0.489 12.42 11.20
7 177.80 20.00 29.76 0.272 6.91 33.60 13-3/8 339.70 48.00 71.43 0.330 8.36 14.00
7 177.80 23.00 34.23 0.317 8.05 29.21 13-3/8 339.70 54.50 81.10 0.380 9.65 12.22
7 177.80 26.00 38.69 0.362 9.19 25.85 13-3/8 339.70 61.00 90.78 0.430 10.92 11.02
7 177.80 29.00 43.16 0.408 10.36 23.17 13-3/8 339.70 68.00 101.19 0.480 12.19 9.88
7 177.80 32.00 48.62 0.453 11.51 21.00 13-3/8 339.70 72.00 107.15 0.514 13.06 9.33
7 177.80 35.00 52.09 0.498 12.65 19.20 16 406.40 65.00 96.73 0.375 9.52 10.34
7 177.80 38.00 56.55 0.540 13.72 17.68 16 406.40 75.00 111.6 0.438 11.13 8.96
7-5/8 193.70 24.00 35.72 0.300 7.62 28.00 16 406.40 84.00 125.0 0.495 12.57 8.00
7-5/8 193.70 26.40 39.29 0.328 8.33 25.45 18-5/8 473.00 87.50 130.21 0.435 11.05 7.68
7-5/8 193.70 29.70 44.20 0.375 9.52 22.62 20 508.00 94.00 139.89 0.438 11.13 7.15
7-5/8 193.70 33.70 50.15 0.430 10.92 19.94 20 508.00 106.50 158.49 0.500 12.70 6.31
7-5/8 193.70 39.00 58.04 0.500 12.70 17.23 20 508.00 133.00 197.92 0.635 16.13 5.05
BIT SIZE WIDTH LENGTH HEIGHT
4 2/5 15 15 32
4 1/2 15 15 32
4 3/4 15 15 32
4 7/8 15 15 32
5 1/8 15 15 32
5 1/5 15 15 32
5 1/4 15 15 32
5 3/8 15 15 32
5 1/2 17 17 33
5 5/8 17 17 34
5 2/3 17 17 34
5 7/8 17 17 31-34
6 17 17 33-34
6 19 19 37
6 1/8 19 19 37
6 1/4 19 19 37
6 1/2 19 19 37
6 3/4 19 19 37
7 1/2 21 21 41
7 7/8 22 22 40-42
8 1/2 25 25 43
8 3/8 25 25 43
8 3/4 25 25 43
9 25 25 43
9 5/8 27 27 48
9 7/8 27 27 48
10 5/8 29 29 51
11 29 29 51
11 5/8 32 32 51-49
12 1/4 34 34 54
12 5/8 34 34 53
13 3/8 41 41 59
13 3/4 41 41 59
14 3/4 42 42 67
15 42 42 67
15 1/2 42 42 67
17 1/2 65 61 53
67 61 65
74 55 52
79 53 55
74 53 55
BIT SIZES IN 3 3/4″ 3 7/8″ 4 1/8″ 4 1/4″ 4 1/2″ 4 5/8″ 4 3/4″ 5 5/8″ 5 7/8″ 6″ 6 1/8″ 6 1/4″
MM 95,2 95,2 104,8 108 114,3 117,5 120,6 142,9 149,2 152,4 155,6 158,8
STEEL TOOTH KG 4,5 4,5 5 5 5,4 7,3 7,3 14,1 13,2 13,6 13,6 13,6
LBS 10 10 11 11 12 16 16 31 29 30 30 30
TCI KG 5,2 5,2 5,6 5,8 6 6,8 7,7 15,4 17,7 17,7 17,7 18,6
LBS 11,5 11,5 12,5 12,7 13,2 14,9 17 34 39 39 39 41
BIT SIZES IN 6 1/2″ 6 5/8″ 6 3/4″ 7 7/8′ 8 3/8″ 8 1/2″ 8 5/8″ 8 3/4″ 9 1/2″ 9 5/8″ 9 7/8″ 10 5/8″
MM 165,1 166,3 171,4 200 212,7 215,9 219,1 222,2 241,3 244,5 250,8 269,9
STEEL TOOTH KG 14,1 14,1 20,4 33,1 39 39 40,8 40,8 58,9 59,9 62,1 72,1
LBS 31 31 45 73 86 86 90 90 130 132 137 159
TCI KG 21,3 21,8 22,2 34,5 39 40,8 40,8 40,8 32,1 62,6 63,5 71,7
LBS 47 48 49 76 86 90 90 90 137 138 140 158
BIT SIZES IN 11 12″ 12 1/4″ 13 1/2″ 13 3/4″ 14 3/4″ 15″ 17 1/2″ 20″ 22′ 23″ 24″
MM 279,4 304,8 311,2 342 349,2 374,6 381 444,5 508 558,8 584,2 609,6
STEEL TOOTH KG 74,8 87,1 95,7 124,3 124,7 163,3 170 256 384 467 490 552
LBS 165 192 200 273,4 274,3 359,2 374 563,2 844,8 1027,4 1078 1214,4
TCI KG 77,1 95,7 101,6 135 136 177,8 185 287 420 503 516 581
LBS 170 211 220 297 299,2 391,1 407 631,4 924 1106,6 1135,2 1278,2
BIT SIZE IN 26 28″ 36″
MM 660,4 711,2 914,4
STEEL TOOTH KG 649 692 1363,6
LBS 1427,8 1522,4 3000
TCI KG 668 706 1818
LBS 1469,6 1553,32 4000
Bit Size API Pin Size Recommended Torque
in. mm in. mm ft-lbs. N-m
3-1/2 to 4-1/2 89 to 114 2-3/8 Reg. 60 3,000 to 3,500 4,000 to 4,800
4-5/8 to 5 118 to 127 2-7/8 Reg. 73 4,500 to 5,500 6,000 to 7,000
5-1/8 to 7-3/8 137 to 187 3-1/2 Reg. 89 7,000 to 9,000 9,500 to 12,000
7-5/8 to 9 194 to 229 4-1/2 Reg. 114 12,000 to 16,000 16,000 to 22,000
9-1/2 to 28* 241 to 711 6-5/8 Reg. 168 28,000 to 32,000 38,000 to 43,000
14-3/4 to 28* 375 to 711 6-5/8 Reg.
or
7-5/8 Reg.
168
or
194
28,000 to 32,000

34,000 to 40,000

38,000 to 43,000

46,000 to 54,000

18-1/2 to 28* 470 to 711 7-5/8 Reg.
or
8-5/8 Reg.
194
or
219
34,000 to 40,000

40,000 to 60,000

46,000 to 54,000

54,000 to 81,000