Integral drill rod
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. It can reduces the expense of impact energy, improves the drilling speed and efficiency, also it can be used for drilling bore hole diameter from 29mm to 40mm usually. Regarding Integral drill steels, the quality of a steel material and a tungsten carbide is very important to get good drilling performance.
According to different application, different lengths are available from 600mm to 4800mm usually.
| Integral Drill Steel | Series | D | L |
| mm | inch | mm | ft |
Shank: Hex.22mm(7/8") or Hex.25mm(1")*108 mm
| 11 | 34 | 1 11/32 | 800 | 2 |
| 33 | 1 19/64 | 1600 | 5 |
| 32 | 1 1/4 | 2400 | 7 |
| 31 | 1 7/32 | 3200 | 10 |
| 30 | 1 3/16 | 4000 | 13 |
| 29 | 1 9/64 | 4800 | 5 |
| 12 | 40 | 1 37/64 | 800 | 2 |
| 39 | 1 17/32 | 1600 | 5 |
| 38 | 1 1/2 | 2400 | 7 |
| 37 | 1 29/64 | 3200 | 10 |
| 36 | 1 27/64 | 4000 | 13 |
| 35 | 1 3/8 | 4800 | 5 |
| 13 | 34 | 1 11/32 | 400 | 1 |
| 33 | 1 19/64 | 800 | 2 |
| 32 | 1 1/4 | 1200 | 3 |
| 31 | 1 7/32 | 1600 | 5 |
| 30 | 1 3/16 | 2000 | 6 |
| 16 | 35 | 1 3/8 | 600 | 2 |
| 34 | 1 11/32 | 1200 | 3 |
| 33 | 1 5/16 | 1800 | 5 |
| 32 | 1 1/4 | 2400 | 7 |
| 17 | 41 | 1 5/8 | 600 | 2 |
| 40 | 1 37/64 | 1200 | 3 |
| 39 | 1 17/32 | 1800 | 5 |
| 38 | 1 1/2 | 2400 | 7 |
