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Hole Opener

                                      

 

HOLE OPENERS

The Fixed Diameter Hole Opener is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, are hardfaced and welded on body. Cutters are available in three types: type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation. The hole openers have three or six jet tubes with replaceable nozzles, so that jet streams quickly clean the enlarged hole.

 

Type

Std opening hole
mm (inch)

Qty of cutters

Pilot hole(mini)
mm (inch)

Fishing Neck

Bottom conn.

Bore
mm (inch)

Overall Length
mm (inch) 

Weight with cutters (kg)approx.

Length
mm (inch)

Dia.
mm (inch)

Top conn.

KZ3-311

311 (12 1/4)

3

216 (8-1/2)

457.2 (18)

203 (8)

6-5/8REG

4-1/2REG

38.1 (1-1/2)

1524(60)

360

KZ3-444

444.5 (17 1/2)

3

266.7 (10-1/2)

457.2 (18)

241.3 (9-1/2)

7-5/8REG

7-5/8REG

57.2 (2-1/4)

1752 (69)

550

KZ3-660

660.4 (26)

3

444.5 (17-1/2)

457.2 (18)

241.3 (9-1/2)

7-5/8REG

7-5/8REG

76.2 (3)

1753 (69)

900

KZ3-914

914.4 (36)

3

609.6 (24)

508 (20)

241.3 (9-1/2)

7-5/8REG

7-5/8REG

76.2 (3)

1905 (75)

1000

KZ4-914

914.4 (36)

4

457.2 (18)

1092.2 (43)

254 (10)

7-5/8REG

7-5/8REG

88.9 (3-1/2)

2642 (104)

1540