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Tapered Carbide Rock Drill Button Bits for Blast Hole Drilling

Application for Drill bits: Taper drill button bit is widely used in metallurgy mine, geological exploration, electricity, water conservancy construction, traffic, tunnel, quarry, national defense stone project etc. Drill Button Bits Feature: Taper button bit is made with high quality of best...

Application for Drill bits:

Taper drill button bit is widely used in metallurgy mine, geological exploration, electricity, water conservancy construction, traffic, tunnel, quarry, national defense stone project etc.


Drill Button Bits Feature:

Taper button bit is made with high quality of best quality alloy steel bar and tungsten carbides through heat treatment, so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.


Button bits be designed and manufactured according to customers' samples or drawings of the Bit Dia., No. of air / water holes, carbide button shape and the face shape.

According to the tungsten carbide insert, tapered button bits can be divided into three types of hemispherical,conical and parabolic button, etc.

 

Drill Button Bits Characteristic:

(1)Button bit taper angle: 4°, 4°46″,6°,7°,11°,12° 

(2)Diameter: 20-45 mm

(3)Button bit shape: hemispherical, conical, parabolic

(4)Socket inside diameter: 15 / 19 / 22 / 25(mm)

(5)Material and process: high quality alloy steel bar and tungsten carbides, through heat treatment

 

Specification of Button Bits:

Description

Diameter

Length

No. of button

Weight

Taper Angle a=4°46″,6 °,7°,11°,12°

Socket inside d=19,22,25mm

 图片1.png

mm

mm

pcs

kg

28

50

4

0.2

29

50

4 5 6 7

0.2

30

50 80

5 6 7 8

0.2 0.3

32

50 55 71 80

6 7 8 9

0.2 0.22 0.3

33

50 55 71 80

6 7 9

0.2 0.3 0.36

34

50 55

7 8

0.22 0.3

35

55 71 80

4 5 6 7

0.22 0.3 0.37

36

50 55

7

0.3 0.35

37

55

4 6 7

0.3

38

50 55

4 6 7

0.25 0.35

40

50 55

7

0.35

41

50 55 71

4 5

0.35

42

50

6 7

0.4

45

50 55 71

6 7 8 9

0.5

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