TUNGSTEN CARBIDE BIT IADC CODE CLASSIFICATIONS
Series
Formation
Type
1
2
3
4
5
6
7
Open Roller Bearing
Open Bearing Air Cooled
Open Roller Bearing Gauge Protected
Sealed Roller Bearing
Sealed Roller Gauge Proteced
Sealed Journal Bearing
Sealed Journal Bearing Gauge Protected
4
Soft
1
-
-
-
-
-
-
WLS 417
2
-
-
-
-
-
-
-
3
-
-
-
-
WLS 435
-
WLS 437
4
-
-
-
-
-
-
WLS 447
5
Medium
Soft
1
-
-
-
-
-
-
WLS 517
2
-
-
-
-
-
-
WLS 527
3
-
-
-
-
WLS 535
-
WLS 537
4
-
-
-
-
WLS 545
-
WLS 547
6
Medium
1
-
-
-
-
WLS 615
-
WLS 617
2
-
-
-
-
WLS 625
-
WLS 627
3
-
-
-
-
WLS 635
-
WLS 637
4
-
-
-
-
-
-
-
7
Hard
1
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
3
-
-
-
-
-
-
WLS 737
4
-
-
-
-
WLS 745
-
-
8
Very
Hard
1
-
-
-
-
-
-
WLS 817
2
-
-
-
-
-
-
-
3
-
-
-
-
WLS 835
-
WLS 837
4
-
-
-
-
-
-
-
TUNGSTEN CARBIDE INSERT BIT PRODUCT LINE
BIT DIAMETER
TYPE
PIN SIZE
APPX WT.
in
mm
WLS
API
lb
kg
4 3/4
120.6
WLS 547 R
WLS 517
WLS 547
2 7/8
24.2
11.0
4 7/8
124.0
WLS 547 R
WLS 547
2 7/8
26.4
12.0
5 1/2
139.7
WLS 547
3 1/2
29.7
13.5
5 5/8
142.9
WLS 547
3 1/2
30.2
13.7
5 2/3
144.0
WLS 546
3 1/2
30.8
14.0
6
152.4
WLS 417
WLS 447
3 1/2
35.2
16.0
6 1/8
155.6
WLS 547
3 1/2
37.4
17.0
6 1/4
158.7
WLS 517
WLS 537
3 1/2
37.4
17.0
6 1/2
165.1
WLS 517
WLS 547
WLS 817
3 1/2
44.0
20.0
6 3/4
171.4
WLS 517
WLS 537
3 1/2
50.6
23.0
7 1/2
190.5
WLS 517
WLS 545
WLS 547
WLS 625
WLS 627
WLS 835
4 1/2
66.0
30.0
7 7/8
200.0
WLS 417
WLS 517
WLS 527
WLS 537
WLS 817
4 1/2
72.6
33.0
8 1/2
215.9
WLS 417
WLS 435
WLS 437
WLS 517
WLS 535
WLS 537
WLS 547
WLS 625
WLS 627
WLS 635
WLS 745
WLS 835
WLS 837
4 1/2
81.4
37.0
8 3/4
215.9
WLS 437
4 1/2
88.0
40.0
9 5/8
244.5
WLS 535
6 5/8
121.0
55.0
9 7/8
250.8
WLS 517
WLS 537
WLS 737
6 5/8
127.6
58.0
10 5/8
269.9
WLS 437
WLS 535
WLS 537
WLS 545
WLS 547
WLS 627
WLS 745
6 5/8
167.2
76.0
11
279.4
WLS 617
6 5/8
173.8
79.0
11 5/8
295.3
WLS 535
WLS 545
WLS 625
6 5/8
198.0
90.0
12 1/4
311.1
WLS 437
WLS 517
WLS 535
WLS 537
WLS 617
6 5/8
204.6
127.6
127.6
127.6
127.6
93.0
15 1/22
393.7
WLS 545
WLS 615
7 5/8
440.0
200.0
17 1/2
444.5
WLS 535
WLS 545
7 5/8
594.0
270.0
STEEL TOOTH BIT IADC CODE CLASSIFICATIONS
Series
Formation
Type
1
2
3
4
5
6
7
Open Roller Bearing
Open Bearing Air Cooled
Open Roller Bearing Gauge Protected
Sealed Roller Bearing
Sealed Roller Gauge Proteced
Sealed Journal Bearing
Sealed Journal Bearing Gauge Protected
1
Soft
1
-
-
-
WLS 114
WLS 115
WLS 116
WLS 117
2
WLS 121
-
-
WLS 124
WLS 125
WLS 126
-
3
WLS 131
-
-
WLS 134
WLS 135
WLS 136
-
4
-
-
-
-
-
-
-
2
Medium
1
WLS 211
-
-
WLS 214
WLS 215
WLS 216
-
2
WLS 231
-
-
-
-
-
-
3
-
-
-
-
-
-
-
4
-
-
-
-
-
-
-
3
Hard
1
-
-
-
WLS 314
WLS 315
-
-
2
-
-
-
-
-
-
-
3
-
-
-
-
-
-
-
4
-
-
-
-
-
-
-
STEEL TOOTH BIT PRODUCT LINE
BIT DIAMETER
TYPE
PIN SIZE
APPX WT.
in
mm
WLS
API
lb
kg
5 1/8
130.2
WLS 216
5 1/2
139.7
WLS 126
3 1/2
29.7
13.5
6 1/4
158.7
WLS 126
3 1/2
37.4
17.0
6 11/32
161.0
WLS 547
4 1/2
37.4
17.0
7 1/2
190.5
WLS 121
WLS 126
WLS 131
WLS 136
WLS 214
WLS 231
WLS 314
4 1/2
61.6
28.0
7 7/8
200.0
WLS 116
4 1/2
68.2
31.0
8 1/2
215.9
WLS 116
WLS 117
WLS 121
WLS 125
WLS 131
WLS 134
WLS 135
WLS 136
WLS 211
WLS 214
WLS 231
4 1/2
77.0
35.0
8 3/4
215.9
WLS 117
4 1/2
83.6
38.0
9 7/8
250.8
WLS 114
WLS 116
WLS 126
WLS 134
6 5/8
121.0
55.0
10 5/8
269.9
WLS 121
WLS 126
WLS 211
WLS 231
6 5/8
147.4
67.0
11 5/8
295.3
WLS 115
WLS 121
WLS 124
WLS 136
WLS 211
WLS 214
6 5/8
180.4
82.0
12 1/4
311.1
WLS 115
WLS 116
WLS 124
WLS 136
WLS 314
6 5/8
193.6
88.0
13 3/4
349.7
WLS 115
7 5/8
264.0
120.0
15 1/2
393.7
WLS 115
WLS 215
WLS 315
7 5/8
396.0
180.0
17 1/2
444.5
WLS 115
WLS 215
WLS 315
7 5/8
572.0
260.0