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WLS PREMIUM SEALED JOURNAL BEARING DRILL BITS
Steel Tooth Products
DIAMETER FORMATION TYPE PIN SIZE APPX. WT.
in mm IADC API lbs kg
4 3/4 121 117 2 7/8
5 7/8 149 217 3 1/2 34 15.4
6 152 117 3 1/2 32 14.7
6 1/4 159 127 3 1/2 39 17.7
6 1/2 165 127 3 1/2 65 29.7
7 7/8 200 116 4 1/2 80 36.1
7 7/8 200 117 4 1/2 80 36.1
8 1/2 216 117K 4 1/2 85 38.4
8 3/4 222 117 4 1/2 89 40.4
9 7/8 251 116 6 5/8 138 62.7
9 7/8 251 117 6 5/8 138 62.7
11 279 117 6 5/8 176 79.8
12 1/4 311 117 6 5/8 208 94.2
17 1/2 445 117 6 5/8 590 267.5
Tungsten Carbide Insert Products
DIAMETER FORMATION TYPE PIN SIZE APPX. WT.
in mm IADC API lbs kg
4 1/8 105 517X 2 3/8
4 1/4 108 547X 2 3/8 14 6.5
4 3/4 121 547R 2 7/8
4 3/4 121 547Y 2 7/8 23 10.5
4 7/8 124 547Y 2 7/8 25 11.5
5 1/2 140 547
5 5/8 143 547 3 1/2 32 14.7
5 2/3 144 547 3 1/2 32 14.7
5 3/4 146 547 3 1/2 35 15.7
5 7/8 149 537 3 1/2 35 15.9
6 152 517 3 1/2 37 16.7
6 1/8 156 517X, 547 3 1/2 46 20.7
6 1/4 159 537X 3 1/2 48 21.7
6 1/2 165 517X, 547Y, 837 3 1/2 46 20.7
6 3/4 171 517X, 537 3 1/2 59 26.7
7 7/8 200 437X, 517X, 527Y, 537Y, 547
627Y, 637
4 1/2 84 38.1
8 1/2 216 517, 537 4 1/2 82 37.4
8 3/4 222 437X, 437Y, 547Y, 547X, 627 4 1/2 85 38.4
9 7/8 251 417X 6 5/8 139 63.2
11 279 527Y, 547Y 6 5/8 178 80.8
12 1/4 311 417X, 437X, 447, 517X, 527Y,
537X, 617
6 5/8 230 104.2
17 1/2 445 437, 517 6 5/8 590 267.5



 


   

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