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HOLE SIZE CHART |
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Boart Longyear diamond coring bits |
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SIZE |
CORE SIZE |
HOLE SIZE |
SIZE |
CORE SIZE |
HOLE SIZE |
|---|---|---|---|---|---|
AQ, AQ-U |
27.0 |
48.0 |
LTK46 |
35.6 |
46.0 |
AQ, AQTK-U |
30.5 |
48.0 |
LTK48 |
35.6 |
48.0 |
BQ, BQ-U |
36.4 |
60.0 |
LTK56 |
45.2 |
56.0 |
BQTK, BQTK-U |
40.7 |
60.0 |
LTK60 |
45.2 |
60.0 |
NQ, NQ-U |
47.6 |
75.7 |
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NQ2", NQ2"-U |
50.6 |
75.7 |
hd/CHD76 |
43.5 |
75.7 |
HQ, HQ-U |
63.5 |
96.0 |
hd/CHD101 |
63.5 |
101.3 |
PQ |
85.0 |
122.6 |
CHD134 |
85.0 |
134.0 |
| BQ-3 | 33.5 |
60.0 |
rwg | 18.7 |
29.8 |
| NQ-3 | 45.0 |
75.7 |
ewg, ewm, ewl | 21.5 |
37.7 |
| HQ-3 | 61.1 |
96.0 |
awg, awm, awl | 30.1 |
48.0 |
| PQ-3 | 83.0 |
122.6 |
bwg, bwm, bwl | 42.0 |
60.0 |
| nwg, nwm, nwl | 54.7 |
75.7 |
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| hwg | 76.2 |
99.2 |
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Hagby Metric Thin Wall Wireline SYSTEM |
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Size |
rod OD (mm) |
rod ID (mm) |
Hole Size (mm) |
Core Size (mm) |
|---|---|---|---|---|
WL46 |
43.2 |
35.2 |
46.8 |
28.8 |
WL56 |
53.2 |
45.2 |
56.8 |
39.0 |
WL66 |
63.9 |
57.0 |
66.3 |
50.5 |
WL66-3* |
63.9 |
57.0 |
66.3 |
45.0 |
WL76 |
73.2 |
64.4 |
76.3 |
57.5 |
WL76-3* |
73.2 |
64.4 |
76.3 |
52.0 |
W Series flush joint casing |
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Size |
rod ID (inch) |
rod ID (mm) |
rod OD (inch) |
rod OD (mm) |
|---|---|---|---|---|
RW |
1 3/16 |
30.2 |
1 7/16 |
36.5 |
EW |
1 1/2 |
38.1 |
1 13/16 |
46.0 |
AW |
1 29/32 |
48.4 |
2 1/4 |
57.1 |
BW |
2 3/8 |
60.3 |
2 7/8 |
73.0 |
NW |
3 |
76.2 |
3 1/2 |
88.9 |
HW |
4 |
101.6 |
4 1/2 |
114.3 |
PW |
5 |
127.0 |
5 1/2 |
139.7 |
SW |
6 |
152.4 |
6 5/8 |
168.3 |
VW |
7 |
177.8 |
7 5/8 |
193.7 |
ZW |
8 |
203.2 |
8 5/8 |
219.1 |
bradley manufacturing |
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size |
ID (inch) |
ID (mm) |
OD (inch) |
OD (mm) |
Hole Size (mm) |
core size (mm) |
|---|---|---|---|---|---|---|
| A W/L | 1 3/8 |
34.9 |
1 3/4 |
44.5 |
48.0 |
27 |
| B W/L | 1 13/16 |
46 |
2 1/5 |
55.6 |
59.9 |
36.4 |
| N W/L | 2 3/8 |
60.3 |
2 3/4 |
69.9 |
75.7 |
47.6 |
| H W/L | 3 1/16 |
77.8 |
3 1/2 |
88.9 |
96.1 |
63.5 |
| P W/L | 4.062 |
103.2 |
4.625 |
117.5 |
122.6 |
85 |
bradley manufacturing |
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size |
ID (inch) |
ID (mm) |
OD (inch) |
OD (mm) |
Hole Size (mm) |
core size (mm) |
|---|---|---|---|---|---|---|
| ATW | 1.44 |
36.5 |
1.75 |
44.5 |
48.0 |
30.3 |
| BTW | 1.91 |
48.5 |
2.23 |
55.6 |
60.0 |
42.0 |
| NTW | 2.53 |
64.1 |
2.88 |
69.9 |
75.7 |
56.0 |