25mm- 42mm 2/3-Wing Yellow Color Coal Drill Bits
Product Description
We are a professional manufacturer specialized in series of coal mining drill bit,we can also produce other products according to the customers requirements.We sincerely welcome our friend both home and abroad to come for business talks.
Coal bits are mainly used in coal and mine drilling, have dry-type & wet-type.
Dimension:25, 27, 28, 29, 30, 32, 36, 42 mm.
Normal Thread Model:M16*2;M14*1.5, M12*1.75;M14*1.5;M12*1.75
Coal Drill bit
Tungsten carbide dry coal drill bit
1.Mainly used in coal and mine drilling
2.Dry and Wet Type available
3.Dimension:25, 27, 28, 29, 30, 32, 36, 42 mm.
4.Normal Thread Model:M16*2;M14*1.5, M12*1.75;M14*1.5;M12*1.75
5.We can do different measures as per customers demand.
6.Lead time should be 20 working days after payment or depending on quantity
7.T/T,L/C,West Union Accepted
| Number |
Diameter(mm) |
Common Connect Size |
Blade |
Body Structure |
| NO.1 |
27 |
M12/8 M14×1.5 |
2 |
Integrated |
| NO.2 |
28 |
M12/8 F12×12 |
2 |
Integrated |
| NO.3 |
30 |
M12/8 F12×12 |
2 |
Integrated |
| NO.4 |
32 |
M14×1.5/8 F12×12 |
2 |
Integrated |
| NO.5 |
34 |
M14×1.5/8 F12×12 |
2 |
Integrated |
| NO.6 |
36 |
M14×1.5/8 F12×12 |
2 |
Integrated |
| NO.7 |
38 |
T24×5/12 F14×14 |
2--3 |
Integrated |
| NO.8 |
42 |
T24×5/12 F13-14 |
2--3 |
Integrated |
| NO.9 |
45 |
T24×5/12 F13-18 |
2--3 |
Integrated |
| NO.10 |
55 |
T24×5/12 F13-18 |
4 |
2 Matrix |
| NO.11 |
65 |
T24×5 F13-18 |
4--5 |
2 Matrix |
| NO.12 |
75 |
T33×4.23 F13-18 |
4--5 |
2 Matrix |
| NO.13 |
76 |
T33×4.23 F18-24 |
4--5 |
2 Matrix |
| NO.14 |
82 |
T42×5.08 F18-24 |
4--5 |
2 Matrix |
| NO.15 |
85 |
T42×5.08 F18-24 |
4--5 |
2 Matrix |
| NO.16 |
89 |
T42×5.08 F24-32 |
5--7 |
3 Matrix |
| NO.17 |
95 |
T55×5.08 F24-32 |
5--7 |
3 Matrix |
| NO.18 |
110 |
T55×5.08 B35-45 |
5--7 |
3 Matrix |
| NO.19 |
125 |
T55×5.08 B35-45 |
5--12 |
4 Matrix |
| NO.20 |
135 |
T55×5.08 B35-45 |
5--12 |
4 Matrix |
Audited Supplier 
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