Our 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.
The taper drill bit is widely used in metallurgy mine, geological exploration, water conservancy construction, electricity, traffic, tunnel, quarry, national defence stone project etc.
Products name: Button drill bits
(1)Button bit taper angle: 4°,4°46″,6°,7°,11°,12°
(2)Models: chisel bit/cross bit/button bit
(3)Diam:20-45 mm
(4)Button bit shape: spherical/parabolic
(5)Socket inside diameter:15/19/22/25(mm)
(6)Material and process: high quality alloy steel bar and tungsten carbides, through heat treatment
Products technical data:
Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, tapered button bits can be divided into the types of hemispherical, conical and parabolic button, etc.
1. Tapered chisel bit
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 d=15,19,22,25mm
|
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 bit
Used under any rock drilling condition and mainly used for hard or very hard rock formation because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because of 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 d=19,22,25mm |
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 taper chisel and cross bits, button bits have higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, button bits can be divided into types of hemispherical, conical 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 button |
Weight |
| Taper Angle a=4°46″,6 °,7°,11°,12°; Socket inside d=19,22,25mm |
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 |
We can design and manufacture according to customers' requirement of the Bit Dia., No. of air/water holes, carbide button shape and the face shape.
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