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Hole Opener
Hole Opener is used for enlarging the surface hole which drilled by cone bit in advance, or connected above the cone bit. It applies to Onshore and offshore oilfield. Drilling Tools
Describe

Hole Opener is used for enlarging the surface hole which drilled by cone bit in advance, or connected above the cone bit. It applies to Onshore and offshore oilfield.

Cutters type: "SM": Soft to medium formation; "MH": Medium to hard formation; "XH": Hard formation.

Specifications

Model

Opening Size
   mm(inch)

Number
  of
  Cutters

Pilot Hole(Min.) mm(inch)

Fishing Neck
   mm(inch)

UpperConn.

LowerConn.

ID
  mm(inch)

OAL
  mm(inch)

KZ3-216

215.9
  (8 1/2)

3

165.1
  (6 1/2)

120.7
  (4 3/4)

NC38

3 1/2REG

25.4
  (1)

1524
  (60)

KZ3-311

311
  (12 1/4)

3

215.9
  (8 1/2)

203.2
  (8)

6 5/8REG

4 1/2REG

38.1
  (1 1/2)

1524
  (60)

KZ3-444

444.5
   (17 1/2)

3

266.7
  (10 1/2)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

57.2
  (2 1/4)

1752
  (69)

KZ3-584

584
  (23)

3

355.6
  (14)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

1753
  (69)

KZ3-660

660.4
  (26)

3

444.5
  (17 1/2)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

1753
  (69)

KZ3-813

812.8
  (32)

3

444.5
  (17 1/2)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

1850
  (72-27/32)

KZ3-914

914.4
  (36)

3

609.6
  (24)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

1905
  (75)

KZ4-914

914.4
  (36)

4

444.5
  (17 1/2)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

89
  (3 1/2)

2650
  (104 3/8)

KZ4-813

812.8
  (32)

4

444.5
  (17 1/2)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

2540
  (100)

KZ6-1067

1066.8
  (42)

6

660.4
  (26)

241.3
  (9 1/2)

7 5/8REG

7 5/8REG

76.2
  (3)

1955
  (77)




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