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R28 Thread Drill Bit
R32 Thread Drill Bit
R38 Thread Drill Bit
T38 Thread Drill Bit
T45 Thread Drill Bit
T51 Thread Drill Bit
This top hammer drill bits for mining are widely used in metallurgy mine, geological exploration, water conservancy construction, electricity, traffic, tunnel, quarry, national defence stone project etc.
Besides, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.
1. Top Hammer Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations. Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
2. Recommended for eliminating hole deviation.
3. Widely used drifting and tunneling,Surface drilling and underground tunneling project.
4. Top Hammer Drill Bit face design is ideal for medium-hard to hard abrasive rock.
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
|
|
38 |
1 1/2” |
0.5 |
|
41 |
1 5/8” |
0.6 |
|
|
43 |
1 11/16” |
0.7 |
|
|
45 |
1 3/4” |
0.7 |
|
|
|
38 |
1 1/2” |
0.5 |
|
41 |
1 5/8” |
0.6 |
|
|
43 |
1 11/16” |
0.7 |
|
|
45 |
1 3/4” |
0.7 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight(kg) |
|||
|
mm |
Inch |
mm |
Inch |
|
|||
|
|
R28 |
39 |
1 1/2” |
150 |
6” |
0.9 |
|
|
|
R32/R28 |
45 |
1 3/4” |
170 |
6 11/16” |
1.3 |
|
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
|
|
45 |
1 3/4” |
0.8 |
|
48 |
1 7/8” |
0.9 |
|
|
51 |
2” |
1.0 |
|
|
57 |
2 1/4” |
1.2 |
|
|
64 |
2 1/2” |
1.5 |
|
|
|
41 |
1 5/8” |
0.6 |
|
45 |
1 3/4” |
0.7 |
|
|
48 |
1 7/8” |
0.9 |
|
|
51 |
2” |
1.0 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight(kg) |
|||
|
mm |
Inch |
mm |
Inch |
|
|||
|
|
R32 |
45 |
1 3/4” |
160 |
6” 1/4” |
1.0 |
|
|
|
R38/R32 |
54 |
2 1/8” |
180 |
7 9/64” |
1.1 |
|
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
|
|
64 |
2 1/2” |
1.7 |
|
70 |
2 3/4” |
1.9 |
|
|
76 |
3” |
2.5 |
|
|
89 |
3 1/2” |
3.7 |
|
|
|
64 |
2 1/2” |
1.7 |
|
70 |
2 3/4” |
1.9 |
|
|
76 |
3” |
2.5 |
|
|
89 |
3 1/2” |
3.7 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight(kg) |
||||
|
mm |
Inch |
mm |
Inch |
|
||||
|
|
R38 T38/R38 |
54 |
2 1/8” |
190 |
7 1/12” |
1.8 |
||
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
 |
64 |
2 1/2” |
1.7 |
|
76 |
3” |
2.5 |
|
|
89 |
3 1/2” |
3.7 |
|
|
102 |
4” |
4.6 |
|
|
|
64 |
2 1/2” |
1.7 |
|
76 |
3” |
1.9 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight(kg) |
||||
|
mm |
Inch |
mm |
Inch |
|
||||
|
|
T38 |
54 |
2 1/8” |
190 |
7 1/12” |
1.8 |
||
|
|
T45/T38 |
63 |
2 31/64” |
195 |
7 11/16” |
2.8 |
||
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
 |
76 |
3” |
2.2 |
|
89 |
3 1/2” |
3.7 |
|
|
102 |
4” |
4.4 |
|
|
115 |
4 1/2” |
6.3 |
|
|
|
76 |
3” |
1.9 |
|
89 |
3” 1/2” |
3.7 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight (kg) |
||||
|
mm |
Inch |
mm |
Inch |
|
||||
|
|
T45 |
63 |
2 1/2” |
210 |
8 1/4” |
2.9 |
||
|
|
66 |
2 19/32” |
210 |
8 1/4” |
3.2 |
|||
|
|
T51/T45 |
72 |
2 27/32” |
218 |
8 19/32” |
4.4 |
||
|
Drill bit |
Diameter |
Weight(kg) |
|
|
mm |
Inch |
||
 |
89 |
3 1/2” |
3.8 |
|
102 |
4” |
5.2 |
|
|
115 |
4 1/2” |
6.7 |
|
|
127 |
5” |
8.0 |
|
|
Coupling |
Characteristics |
Diameter |
Length |
Weight(kg) |
||
|
mm |
Inch |
mm |
Inch |
|
||
|
|
T51 |
76 |
3” |
225 |
8 7/8” |
4.7 |
