Products

Hello, come to consult our products !

R28 (1 1/8 “) bit thread

Rock drilling tools include: drill bit,drill rod, shank and coupling. The piston of drill rig directly impacts the shank, makes impact power reach the bit through rod by the form of stress wave, so as to work on the breakage of rock. The primary breaking way is impacting while the secondary is cutting; both are with high drilling efficiency. Usually the land surface of the earth is covered with loose, unconsolidated material such as soil, clay, silt, sand, gravel and boulders, which varies in depth from a few centimeters to hundreds of meters.Use concentric system can drill this complex formation very well.The systems are available through the whole product range the smallest being for 114 mm (4 1/2″) casing and  largest size available at the moment is for 1220 mm (48″) casing.


Product Detail

Product Tags

R28 (1 1/8 “) bit threa

Bits

Diameter

Buttons,mm

Angle

Flushing hole

Weight approx kg

Part No.

mm

in

Front

No Size

Gauge

No Size

Type

Front

Gauge

Button bit
 Button bit

38

1 1/2”

2×7

5×9

图片 2

30º

1

1

0.60

1431-38R28-27/59-45-41

38

1 1/2”

2×7

5×9

图片 2

35º

1

1

0.60

1431-38R28-27/59-45-41

41

1 5/8”

2×8

5×9

图片 2

35º

1

1

0.70

1431-41R28-28/59-45-41

43

1 11/16”

2×8

5×10

图片 2

30º

1

1

0.70

1431-43R28-28/510-45-41

Cross bit
Cross bit

38

1 1/2”

-

-

-

-

1

2

0.60

1221-38R28-12/8-42-23

41

1 5/8”

-

-

-

-

1

2

0.70

1221-41R28-12/8-42-23

Reaming bit, 6º taper
Reaming bit, 6º taper

64

2 1/3”

4×8

8×9

图片 2

25º

-

-

0.90

1441-646-48/89-45-51

76

3”

4×10

8×10

图片 2

30º

-

-

1.30

1441-766-410/810-45-51

89

3 1/2”

4×11

8×11

图片 2

30º

-

-

1.70

1441-896-411/811-45-51

Pilot adapter, 6º taper,R28 thread
Pilot adapter, 6º taper,R28 thread

26

1 1/32”

-

-

-

-

-

-

1.30

1442-26R28-15/8-45-23

Rods

Length

Diameter

Weight approx kg

Part No.

mm

Ft/in

mm

inch

Drifter rod,R32-Hex28-R28
Drifter rod,R32-Hex28-R28

2400

7'10/2”

28

1 1/8”

12.3

21H28—R28/R32-2400-23

2750

9'1/4”

28

1 1/8”

14.1

21H28—R28/R32-2750-23

3090

10'15/8”

28

1 1/8”

15.8

21H28—R28/R32-3090-23

3700

12'15/8”

28

1 1/8”

18.9

21H28—R28/R32-3700-23

4310

14'15/8”

28

1 1/8”

22.0

21H28—R28/R32-4310-23

Coupling sleeve
Coupling sleeve

R32

150

5 7/8”

44

1 23/32”

1.0

31-R32-44-150-23

production process

Thread Button Bit
Thread Button Bits: High quality and several thread with various carbide tips like YK05 are available. All products can be developed upon customers’ request.
Prodrill supply all kind of button bits with Rope thread R22, R25, R28, R32, R35, R38 and T thread, T38, T45, T51, ST58, ST68, T60 etc. for world famous brand drill rig.
Main button bits is:
R32-43MM, R32-45MM, R32-51, R32-64, R32-76;
T38-64, T38-76MM, T38-89, T38-102MM;
T45-76MM, T45-89MM, T45-102MM;
T51-89MM, T51-102MM, T51-127MM etc.
all face design, flat face, drop-center face, normal body and retrac body.

certificate


  • Previous:
  • Next:

  • Write your message here and send it to us