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The Fixed Diameter Hole Openers are made of tough heat treated alloy steel for maximum strength. Cutter arms are hardfaced and welded on body, equipped with removable cutters. Cutters are available in three types:
SM for soft to medium formation
MH for medium to hard formation
XH for hard formation
The Hole Opener have three or six jet tubes with replaceable nozzles, so that jet streams can give a quick clean on the enlarged hole.
When inquires and orders please specify the followings:
1. Hole size
2. Pilot hole size
3. Top and bottom connections
4. Fishing neck and bottom neck length and OD.
5. Types of cutters (SM,MH,XH)
|
Std opening hole |
Nb.of cutters |
Pilot hole（mini） |
Fishing neck |
Bottom conn. |
Bore |
Overall length |
Weight with cutters（kg）approx. |
||
|
Length |
Dia |
Top conn. |
|||||||
|
17-1/2" |
3 |
10-1/2" |
18" |
9-1/2" |
7-5/8REG" |
7-5/8REG" |
2-1/4" |
59" |
550 |
|
26" |
3 |
17-1/2" |
18" |
10" |
7-5/8REG" |
7-5/8REG" |
3" |
69" |
900 |
|
36" |
3 |
24" |
20" |
9" |
7-5/8REG" |
7-5/8REG" |
3" |
75" |
1000 |
|
4 |
18" |
43" |
10" |
7-5/8REG" |
7-5/8REG" |
3" |
100" |
1540 |
|