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Tapered tools, 12° taper Featured Image
  • Tapered tools, 12° taper

Tapered tools, 12° 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.


Product Detail

Product Tags

Tapered tools, 12° taper

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—Short skirt.
 Tapered tools, 12° taper

28

1 1/8”

1×7

4×7

 Button bit

35º

1

1

0.20

1431-281222-17/47-45-51

30

1 3/16”

1×7

4×7

 Button bit

35º

1

1

0.22

1431-301222-17/47-45-51
Button bit—Short skirt.
 Tapered tools, 12° taper

28

1 1/8”

1×7

3×7

 Button bit

35º

1

1

0.20

1431-281222-17/37-45-51

30

1 3/16”

1×7

3×7

 Button bit

35º

1

1

0.22

1431-301222-17/37-45-51

32

1 1/4”

2×7

3×8

 Button bit

35º

1

2

0.24

1431-321222-27/38-45-51

34

1 11/32”

1×8

3×8

 Button bit

35º

1

1

0.26

1431-341222-18/38-45-51

36

1 7/16”

1×8

3×9

 Button bit

40º

1

1

0.29

1431-361222-18/39-45-51

38

1 1/2”

2×8

3×9

 Button bit

40º

1

1

0.32

1431-381222-28/39-45-51

40

1 37/64”

2×8

3×9

 Button bit

40º

1

1

0.36

1431-401222-28/39-45-51
Button bit—Short skirt.
 Tapered tools, 12° taper

32

1 1/4”

2×7

4×7

 Button bit

35º

1

1

0.24

1431-321222-27/47-45-51

34

1 11/32”

2×7

4×7

 Button bit

35º

2

1

0.29

1431-341222-27/47-45-51

36

1 7/16”

2×7

4×8

 Button bit

40º

2

1

0.32

1431-361222-27/48-45-51
Button bit—Short skirt.
 Tapered tools, 12° taper

32

1 1/4”

2×7

5×7

 Button bit

40º

2

1

0.24

1431-321222-27/57-45-51

34

1 11/32”

2×7

5×7

 Button bit

35º

2

1

0.29

1431-341222-27/57-45-51

35

1 3/8”

2×7

5×8

 Button bit

40º

2

1

0.32

1431-351222-27/58-45-51

36

1 7/16”

2×7

5×8

 Button bit

40º

2

1

0.32

1431-361222-27/58-45-51

38

1 1/2”

2×7

5×8

 Button bit

35º

2

1

0.34

1431-381223-27/58-45-51

38

1 1/2”

2×7

5×9

 Button bit

40º

2

1

0.34

1431-381223-27/59-45-51

41

1 5/8”

2×8

5×9

 Button bit

40º

2

1

0.39

1431-411223-28/59-45-51
Button bit—Long skirt.
 Tapered tools, 12° taper

33

1 9/64”

2×7

5×7

 Button bit

40º

2

1

0.29

1431-331222-27/57-45-51

35

1 3/8”

2×7

5×8

 Button bit

40º

2

1

0.32

1431-351222-27/58-45-51

38

1 1/2”

2×7

5×9

 Button bit

40º

2

1

0.34

1431-381223-27/59-45-51
Cross bit—Long skirt.
 Tapered tools, 12° taper

30

1 3/16”

-

-

-

-

1

2

0.24

1221-301222-12/8-42-23

32

1 1/4”

-

-

-

-

1

2

0.24

1221-321222-12/8-42-23

34

1 11/32”

-

-

-

-

1

2

0.29

1221-341222-12/8-42-23

35

1 3/8”

-

-

-

-

1

2

0.29

1221-351222-12/8-42-23

36

1 7/16”

-

-

-

-

1

2

0.32

1221-361222-12/8-42-23

38

1 1/2”

-

-

-

-

1

2

0.34

1221-381222-12/8-42-23
Rods

Lengte

Weight approx kg

Part No.

mm

Ft/in
Shank 22 x 108 mm (7/8″ x 4 1/4″)
Tapered tools, 12° taper Tapered tools, 12° taper

610

2＇

2.20

21H22—12/108-0610-40

800

3＇3″

2.78

21H22—12/108-0800-40

1220

4＇

4.06

21H22—12/108-1220-40

1830

6＇

5.92

21H22—12/108-1830-40

2000

6＇7″

6.44

21H22—12/108-2000-40

2435

8＇

7.76

21H22—12/108-2435-40

3050

10＇

9.64

21H22—12/108-3050-40

3660

12＇

11.50

21H22—12/108-3660-40

4000

13＇1″

12.54

21H22—12/108-4000-40

4800

15＇9″

14.98

21H22—12/108-4800-40

5600

18＇4″

17.42

21H22—12/108-5600-40

6400

21＇

19.86

21H22—12/108-6400-40

7200

23＇6″

22.30

21H22—12/108-7200-40

8000

26＇2″

24.74

21H22–12/108-8000-40

 

FAQ

Q1: Are you a manufacturer?
Yes, we own 3 plants to manufacture various drilling products about 17 years .
We are a one-stop supplier of full range of rock drilling products.

Q2: Are your products high quality ?
Yes .Our customers made the test reports proved that.If you need more information,please contact  us.

Q3: What kind of payment terms do you offer and what is your best payment terms?
We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc.
Our best payment terms is 120 days after shipping date for our distributors and sole distributors.

Q4:Do you offer warranty on your products?
Yes, for different products we offer different warranty that cover all manufacturing defects in materials and workmanship.
The longest period of warranty is 2 years after shipping date.

Q5: Do you offer OEM service?
Yes, we can offer OEM service if you have regular requirement.

Q6: What qualifications do you have?
Till 2020, we have following qualifications:
1)  ISO 9001:2008 management system;
2) 3AA2 credit rating by Dun & Bradstreet;
3) Honoring Contract and Keeping Promise Enterprise by AIC.
4) EC examination certificate for self-drilling anchor bars.
5) 2 invention patents & 6 utility patents.

Q7: Where did you export ?
Till 2020 we have exported to 103 countries.

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