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Tapered tools, 7° taper

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.


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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.

Tapered tools, 7° taper

Bits

Diameter

Dimensions of carbide,mm

Flushing hole

Weight approx kg

Part No.

mm

in

Height

Width

Class

Front

Gauge

Chisel bit(Horseshoe type)
 Tapered tools, 7° taper

32

1 1/4”

13.5

8

3A

-

2

0.22

1111-32722-13/8-40-13

34

1 11/32”

13.5

8

3A

-

2

0.26

1111-34722-13/8-40-13

36

1 7/16”

13.5

8

3A

-

2

0.29

1111-36722-13/8-40-13

38

1 1/2”

13.5

8

3A

-

2

0.32

1111-38723-13/8-40-13

38

1 1/2”

15

9

3A

-

2

0.32

1111-38723-15/9-40-13

40

1 37/64”

13.5

9.2

3A

-

2

0.37

1111-40723-13/9-40-13

40

1 37/64”

13.5

9.2

4A

-

2

0.37

1111-40723-13/9-40-12

40

1 37/64”

15

9.8

3A

-

2

0.37

1111-40723-15/10-40-13

40

1 37/64”

15

9.8

4A

-

2

0.37

1111-40723-15/10-40-12

42

1 21/32”

13.5

9.2

3A

-

2

0.41

1111-42723-13/9-40-13

42

1 21/32”

13.5

9.2

4A

-

2

0.41

1111-42723-13/9-40-12

42

1 21/32”

15

9.8

3A

-

2

0.41

1111-42723-15/10-40-13

42

1 21/32”

15

9.8

4A

-

2

0.41

1111-42723-15/10-40-12

Chisel bit(Oblique–chipways)
 Tapered tools, 7° taper

30

1 3/16”

13.5

8

4A

-

2

0.21

1112-30722-13/8-42-22

32

1 1/4”

13.5

8

4A

-

2

0.22

1112-32722-13/8-42-22

34

1 11/32”

13.5

8

4A

-

2

0.26

1112-34722-13/8-42-22

36

1 7/16”

13.5

8

4A

-

2

0.29

1112-36722-13/8-42-22

38

1 1/2”

15

9

4A

-

2

0.33

1112-38723-15/9-42-22

40

1 37/64”

15

9.8

4A

-

2

0.37

1112-40723-15/10-42-22

42

1 21/32”

15

9.8

4A

-

2

0.41

1112-42723-15/10-42-22
Chisel bit(Flat–chipways)
 Tapered tools, 7° taper

45

1 3/4”

16

10

4A

1

2

0.56

1113-45723-16/10-42-22

50

1 31/32”

16

10

4A

1

2

0.61

1113-50723-16/10-42-22

55

1 1/4”

16

10

4A

1

2

0.75

1113-55723-16/10-42-22

60

2 23/64”

16

10

4A

1

2

0.86

1113-60723-16/10-42-22
Cross bit
 Tapered tools, 7° taper

32

1 1/4”

12

8

3A

1

2

0.26

1221-32722-12/8-42-23

34

1 11/32”

12

8

3A

1

2

0.29

1221-34722-12/8-42-23

36

1 7/16”

12

8

3A

1

2

0.32

1221-36722-12/8-42-23

38

1 1/2”

12

8

3A

1

2

0.37

1221-38723-12/8-42-23

40

1 37/64”

12

8

3A

1

2

0.40

1221-40723-12/8-42-23

42

1 21/32”

12

8

3A

1

2

0.43

1221-42723-12/8-42-23

45

1 3/4”

14

8

3A

1

2

0.49

1221-45723-14/8-42-23

50

1 31/32”

14

8

3A

1

2

0.62

1221-50723-14/8-42-23

55

2 1/4”

16

10

3A

1

2

0.62

1221-55723-16/10-42-23
Bits

Diameter

Buttons,mm

Angle

Flushing hole

Weight approx kg

Part No.

mm

in

Front

No Size

Gsuge

No Size

Type

Front

Gauge

Button bit—For 22mm(7/8”)hex.rod.
 Tapered tools, 7° taper

32

1 1/4”

1×8

3×8

 Button bit

35º

1

1

0.24

1431-32722-18/38-42-53

34

1 11/32”

1×8

3×8

 Button bit

35º

1

1

0.26

1431-34722-18/38-42-53

36

1 7/16”

1×8

3×9

 Button bit

35º

1

1

0.27

1431-36722-18/39-42-53

38

1 1/2”

1×8

3×9

 Button bit

35º

1

1

0.32

1431-38723-18/38-42-53

40

1 37/64”

1×8

3×9

 Button bit

30º

1

1

0.36

1431-40723-18/38-42-53

40

1 37/64”

1×9

3×9

 Button bit

35º

1

1

0.36

1431-40723-19/39-42-53

42

1 21/32”

1×8

3×9

 Button bit

30º

1

1

0.40

1431-42723-18/39-42-53

42

1 21/32”

1×9

3×9

 Button bit

35º

1

1

0.40

1431-42723-19/39-42-53

Button bit—For 22mm(7/8”)hex.rod.Long skirt.
 Tapered tools, 7° taper

32

1 1/4”

2×7

5×7

 Button bit

35º

2

1

0.24

1435-32722-27/57-42-53

34

1 11/32”

2×7

5×7

 Button bit

35º

2

1

0.29

1435-34722-27/57-42-53

36

1 7/16”

2×7

5×8

 Button bit

35º

2

1

0.32

1435-36722-27/58-42-53

38

1 1/2”

2×7

5×8

 Button bit

35º

2

1

0.34

1435-38723-27/58-42-53

38

1 1/2”

2×7

5×9

 Button bit

35º

2

1

0.34

1435-38723-27/59-42-53

40

1 37/64”

2×7

5×9

 Button bit

35º

2

1

0.39

1435-40723-27/59-42-53

41

1 5/8”

2×8

5×9

 Button bit

35º

2

1

0.39

1435-41723-28/59-42-53

Button bit—For 25mm(1”)hex.rod.Long skirt.
 Tapered tools, 7° taper

41

1 5/8”

2×8

5×9

 Button bit

35º

2

1

0.39

1435-41725-28/59-42-53

43

1 11/16”

2×8

5×9

 Button bit

35º

2

1

0.39

1435-43725-28/59-42-53

45

1 3/4”

2×8

5×9

 Button bit

35º

2

1

0.45

1435-45725-28/59-42-53

51

1 31/32”

2×9

5×10

 Button bit

35º

2

1

0.62

1435-51725-29/510-42-53

Rods

Lengte

Weight approx kg

Part No.

mm

Ft/in

Shank 22×108mm(7/8”×4 1/4”)
Tapered tools, 7° taper Tapered tools, 7° taper

1500

4'11 ”

4.68

21H22–7/108-1500-40

2000

6'7 ”

6.20

21H22–7/108-2000-40

2500

8'2 ”

7.73

21H22–7/108-2500-40

3000

9'0 ”

9.25

21H22–7/108-3000-40

3500

11'5 ”

10.78

21H22–7/108-3500-40

4000

13'1 “

12.30

21H22–7/108-4000-40

4500

14'8 ”

13.83

21H22–7/108-4500-40

Shank 25×159mm(1”×6 1/4”)
  Tapered tools, 7° taperTapered tools, 7° taper

4000

13'1 “

16.65

5H25–7/159-4000-40

4700

15'4 “

18.90

5H25–7/159-4700-40

5000

16'4 “

22.10

5H25–7/159-5000-40

5500

18'1 “

22.10

5H25–7/159-5500-40

production process

certificate

Our comprehensive range of bench and production rock drilling tools includes everything from 1”
rope thread equipment all the way up to T60 thread equipment, Many customers say that our rods, tubes and button bits are the best on the market today. Let’s just say they will improve productivity considerably.
R25 (1”)
R28 (1 1/8”)
R32 (1 1/4”)
R/T38 (1 1/2”)
T45 (1 3/4”)
T51 (2”)
T60 (2 3/8”)
Drill bit R/T38
Extension rod T38 – Hex. 32 mm – T38
Extension rod T38 – Round 38 mm – T38 (Speedrod)
Extension rod R38 – Round 38 mm – R38
Extension rod T38 – Round 38 mm – T38
Extenstion rod T38 – Round 38 mm – T38 (with double thread)
Guide rod T38 – Round 45 mm – T38 (Speedrod)
Guide tube T38
Coupling R/T 38


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