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Your Position:Home> Products > Flush Hole PDC Bits > Brazed Flush Hole
Flush Hole PDC Bits
Brazed Flush Hole
CBT Flush Hole PDC bits. These bits are specifically designed for drilling medium hard and soft formations and are commonly used in water well and geothermal well drilling applications.
 
One notable feature of these bits is the presence of several flush holes on top of the bit. These holes help to flush out the cuttings and cool the bit during drilling operations, improving the overall performance and durability of the bit.
 
CBT Flush Hole PDC bits are custom-made to meet specific drilling requirements, depending on the formations and equipment being used. The normal sizes of these bits are shown in the chart below:
Please click a picture to enlarge and get further details.

Flush hole pdc bits--brazed type reference chart

Item

Diameter

Blade Number

Cutter Size

API Regpin

1

3 3/4"(95mm)

3-4-5

1308

2 3/8"

2

3 7/8"(98mm)

3-4-5

1308

2 3/8"

3

4 1/2"(114mm)

3-4-5

1308

2 3/8" 2 7/8"

4

4 3/4"(120mm)

3-4-5

1308

2 3/8" 2 7/8"

5

5"(127mm)

3-4-5

1308

2 3/8" 2 7/8"

6

5 1/8"(130mm)

3-4-5

1308

2 3/8" 2 7/8"

7

5 1/2"(140mm)

3-4-5

1308

2 3/8" 2 7/8"

8

5 5/8"(142mm)

3-4-5

1308

2 3/8" 2 7/8"

9

5 7/8"(149mm)

3-4-5

1308

2 3/8" 2 7/8" 3 1/2"

10

6"(152mm)

3-4-5

1308

2 3/8" 2 7/8" 3 1/2"

11

6 1/8"(155mm)

3-4-5

1308

2 3/8" 2 7/8" 3 1/2"

12

6 1/2"(165mm)

3-4-5

1308/1613

2 3/8" 2 7/8" 3 1/2"

13

6 3/4"(171mm)

3-4-5

1308/1613

2 3/8" 2 7/8" 3 1/2"

14

7"(178mm)

3-4-5

1308/1613

2 3/8" 2 7/8" 3 1/2"

15

7 1/2"(190mm)

3-4-5

1308/1613

3 1/2" 4 1/2"

16

7 7/8"(200mm)

4-5

1308/1613

3 1/2" 4 1/2"

17

8 1/2"(216mm)

4-5

1308/1613

4 1/2"

18

9"(229mm)

4-5

1308/1613

4 1/2"

19

9 3/5"(244mm)

4-5

1308/1613

4 1/2"

20

11"(280mm)

4-5

1308/1613

6 5/8"

21

12 1/4"(311mm)

5

1308/1613

6 5/8"

 

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One-piece Flush Hole
One-piece flush hole PDC bit, the integrated body, strong body, several flush holes on top. 3,4,5 blades we all could make, size from 120mm to 152mm.
Please click a picture to enlarge and get further details.

Flush hole pdc bits--one piece type reference chart

Item

Diameter

Blade Number

Cutter Size

API Regpin

4

4 3/4"(120mm)

3-4-5

1308

2 3/8" 2 7/8"

5

5"(127mm)

3-4-5

1308

2 3/8" 2 7/8"

6

5 1/8"(130mm)

3-4-5

1308

2 3/8" 2 7/8"

7

5 1/2"(140mm)

3-4-5

1308

2 3/8" 2 7/8"

8

5 5/8"(142mm)

3-4-5

1308

2 3/8" 2 7/8"

9

5 7/8"(149mm)

3-4-5

1308

2 3/8" 2 7/8" 3 1/2"

10

6"(152mm)

3-4-5

1308

2 3/8" 2 7/8" 3 1/2"

 

If you have any suggestions or opinions about our products,please leave a message,and we will immediately answer your questions. Thanks for your support.
  • * Name:
  • * E-mail:
  • Tel:
  • Country:
  • * Content:
  • .
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