Rock drilling tools - Taper button bit, Taper chisel bit, Taper cross bit

Views: 7     Author: Site Editor     Publish Time: 2020-05-27      Origin: Site

Rock drilling tools - Taper button bit, Taper chisel bit, Taper cross bit

small hole drilling


Comparing with taper chisel bits and taper 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.  


tapered button bit (1)

  1. taper degree: 4°46″, 6°, 7°, 11° and 12°

  2. diameter: 28mm to 45mm

  3. carbide profile: spherical and ballistic

  4. socket inside diameter: 19mm / 22mm / 25mm

  5. carbide quantity: 4 to 8 pieces

  6. length: 50mm to 80mm

production process for drilling tools


Description Diameter Length Weight
Taper Chisel Bit mm mm kg
20 65 0.15
Taper:a=4°,  6°,7°,11°,12° 22 65 0.15
Socket inside  Dia. D=15,19, 22, 25 25 69 0.15

Tungsten Carbide Ore Mining Small Hole Taper Drill Button Bit
 

28 60 0.2
30 55 80 0.2
32 55 64 71 80 0.25
34 71 80 0.29
36 71 80 0.35
38 71 80 0.4
40 71 80 0.42
42 71 80 0.42
45 71 80 0.45

 

Description Diameter Length Weight
Taper Cross Bit mm mm kg
24 71 80 0.18
Taper:a=6°,7°,11°,12° 26 71 80 0.19
Socket inside  Dia. D=19, 22, 25 28 71 80 0.19

Tungsten Carbide Ore Mining Small Hole Taper Drill Button Bit
 

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
46 80 0.51
48 80 0.53
50 80 0.6
55 85

0.7

 


Description Diameter Length No. of  buttons Weight
Taper Button Bit mm mm
kg
26 50 5 0.2
Taper:a=4°46"  6°,7°,11°,12° 27 50 5 6 0.2
Socket inside  Dia. D=19, 22, 25 28 50 4 5 0.2

Tungsten Carbide Ore Mining Small Hole Taper Drill Button Bit
 

29 50 4 0.2
30 50 80 4 5 6 7 0.2 0.3
32 50 55 71 80 5 6 7 8 0.2 0.22 0.3
33 50 55 71 80 6 7 8 9 0.2 0.3 0.36
34 50 55 6 7 9 0.22 0.3
35   55 71 80 7 8 0.22 0.3 0.37
36 50 55 4 5 6 7 0.3 0.35
37 55 7 0.3
38 50 55 4 6 7 0.25 0.35
40 50 55 4 6 7 0.35
41 50 55 71 7 0.35
42 50 4 5 0.4
45 50 55 71 6 7 0.5

drill bits



Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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