Gold Member Since 2014
Audited Supplier
Xiamen Bestlink Factory Co., Ltd.

Drill Bit, Taper Bit, Button Bits manufacturer / supplier in China, offering Hard Rock Drilling Jack Hammer Taper Shank Drill Bits, Yt24 Air Leg Rock Drill Machine for Breaking Rocks, Yt28 Air Leg Pneumatic Rock Drilling Machine and so on.

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Supplier Homepage Product Small hole drilling tools taper chisel bit Hard Rock Drilling Jack Hammer Taper Shank Drill Bits

Hard Rock Drilling Jack Hammer Taper Shank Drill Bits

FOB Price: US $7-15 / Piece
Min. Order: 50 Pieces
Min. Order FOB Price
50 Pieces US $7-15/ Piece
Get Latest Price
Production Capacity: 300 Sets /Month
Transport Package: Crate
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Diameter 32-40mm
  • Type: Center Drill Bit
  • Usage: Masonry Drilling
  • Structure: Mill Drilling Machine
  • Number of Shaft: No
  • Precision: No
  • Layout: No
  • Trademark: BESLINK
  • Origin: Xiamen, Fujian
  • Certification: SGS
  • Material: Tungsten Carbide
  • Hole Diameter: <50mm
  • Condition: New
  • Controlling Mode: No
  • Automatic Grade: No
  • Brand Name: Bestlink
  • Specification: CE
  • HS Code: 84791090
Product Description

Hard rock drilling jack hammer taper shank drill bits

Tapered drill bits 
For tapered drill bits, our factory have chisel bits, cross bits and button bits, all with various size, smooth design and very good quality, etc. All drill bits are made of high quality raw material and through special heat treatment. We have been exporting a large quantity to over 30 countries and regions such as Australia, U.S.A, South Africa, Japan, Norway and Saudi Arabia, etc.
1. Tapered chisel bits
The tapered chisel bit is widely used in drilling holes with depth less than 
 5 meters and diameter ranged in 20-45 mm by light-duty rock drill, like Y6.

Description

Diameter

Length

Water hole

Taper degree a=4°  6° 7° 11° 12°
Socket inside diameter d=15, 19, 22, 25

mm

mm

2

20

65

2

23

65

2

25

69

2

28

60

2

30

55 88

2

32

55 64 71 80

2

34

71 80

2

36

74

2

38

74

2

40

74

2

42

74

2

45

74

2

 
2. Tapered cross bits 
The taper cross bits can be used under any rock drilling condition because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation.                                                                                         

Description

Diameter

Length

Weight

Taper degree a=  6° 7° 11° 12° Socket inside diameter d=19, 22, 25

mm

mm

kg

28

71 80

0.19

29

71 80

0.2

30

50 67 71 80

0.3

32

50 67 71 80

0.3

33

71 80

0.32

34

67 71 80

0.34

35

67 71 80 

0.35

36

71 80

0.36

38

67 71 80

0.42

40

71 80

0.43

41

71

0.45

42

69 80

0.46

44

80

0.47

45

80

0.5

 
3. Tapered button bits 
Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users.
According to the tungsten carbide insert, tapered button bits can be divided into the types of hemispherical button, conical button and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.                                     

Description

Diameter

Length

No. of
buttons

Taper degree a= 4o46" 6o 7o
11o 12o
Socket inside diameter d=19, 22, 25

mm

mm

pcs

28

50

4

29

50

4 5 6 7

30

50 80

5 6 7 8

32

50 55 71 80

6 7 8 9

33

50 55 71 80

6 7 9

34

50 55

7 8

35

55 71 80

4 5 6 7 

36

50 55

7

37

55

4 6 7

38

50 55

4 6 7

40

7

 

41

50 55 71

4 5

42

50

6 7

45

50 55 71

6 7 8 9

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