Chisel Bit Integral Drill Rod
Our factory can offer many kinds of drill bits, including chisel type bits, cross type bits, tapered drill rods and integral drill rods, mainly used for mining, coal cutting, tunneling, rock cutting in quarrying.
Integral Drill Steel is used by a hand held drill machine in Underground mining and for small hole drilling, equipped with small power rock drills, like air leg rock drills, hand held rock drills, etc.
The tapered drill rod can be matched with multiple drill bits to drill blast holes with different diameters. It also has the advantages of no need of scrapping after abrasion of drill bits, simple maintenance, low price, low cost of drilling each meter, etc.
Main technical data of Taper drill rod:
| Model |
Taper Degree |
Drilling Rod Length |
Shank Size |
| Hex.19mm |
4°46, 6°, 7°, 11°, 12° |
0.4m-4.0m |
83mm, 108mm |
| Hex.22mm |
4°46, 6°, 7°, 11°, 12° |
0.8m-6.0m |
83mm, 108mm |
| Hex.25mm |
4°46, 6°, 7°, 11°, 12° |
0.8m-6.0m |
108mm, 159mm |
The technical parameter of Internal drill rod:
| Shank(mm) |
Length(mm) |
Bits Dia D(mm) |
Weight(kg) |
| Hex22x108 |
800 |
34 |
3 |
| 1600 |
33 |
5.5 |
| 2400 |
32 |
8 |
| 4800 |
29 |
15.4 |
| Hex22x108 |
800 |
40 |
3 |
| 1600 |
39 |
5.5 |
| 2400 |
38 |
8 |
| 3200 |
37 |
10.5 |
| 4000 |
36 |
12.9 |
| 4800 |
35 |
15.4 |
| Hex22x108 |
400 |
34 |
1.8 |
| 800 |
33 |
3.1 |
| 1200 |
32 |
4.3 |
| 1600 |
31 |
5.5 |
| 2000 |
30 |
6.7 |
| Hex22x108 |
600 |
35 |
2.4 |
| 1200 |
34 |
4.3 |
| 1800 |
33 |
6.1 |
| 2400 |
32 |
8 |
| Hex22x108 |
600 |
41 |
2.7 |
| 1200 |
40 |
4.6 |
| 1800 |
39 |
6.6 |
| 2400 |
38 |
8.7 |
Frequently Asked Questions
1. What applications are chisel bit integral drill rods suitable for?
Chisel bit integral drill rods are primarily used for mining, coal cutting, tunneling, and rock cutting in quarrying operations, especially for small hole drilling with hand-held machines.
2. What types of rock drills are compatible with integral drill steels?
They are ideally equipped with small-power rock drills, such as air leg rock drills and hand-held rock drills, commonly used in underground mining.
3. What are the key advantages of using tapered drill rods?
Tapered drill rods offer significant cost efficiency because you do not need to scrap the rod after the drill bits wear out. They are easy to maintain, low in price, and lower the overall drilling cost per meter.
4. How can the tapered drill rod drill holes of different diameters?
The tapered drill rod can be matched and interchanged with multiple drill bits, allowing operator flexibility to drill blast holes of various diameters as needed.
5. What models and sizes of tapered drill rods are available?
The main models include Hex. 19mm, Hex. 22mm, and Hex. 25mm. They support taper degrees of 4°46, 6°, 7°, 11°, and 12°, with lengths ranging from 0.4m up to 6.0m depending on the specification.
