DTH Drill Rods
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DTH drill rods transmit compressed air, so as to power the hammers to perform drilling works.
| mm | mm | mm | mm | Joints connection |
| OD A | Wall thickness B | Effecitve length L | Wrench flat C/G | Pin-Box |
| 76 | 5.5 | 1000/1500/2000 3000 | 57/65 | 2 3/8” REG |
| 76 | 6.5 | 1000/1500/3000 4000/5000/6000 | 65 | 2 3/8” REG |
| 89 | 5.5 | 1000/1500/2000 3000 | 65 | 2 3/8” REG, 2 3/8” IF |
| 89 | 6.5 | 1000/1500/2000 3000/4500/6000 | 65 | 2 3/8” REG, 2 3/8” IF |
| 102 | 6.5 | 1500/2000/3000 4000/5000/6000 | 75/83 | 2 7/8” REG |
| 102 | 8.5 | 1500/2000/3000 4000/5000/6000 | 75/83 | 2 7/8” REG |
| 114 | 6.5 | 1000/1500/2000 3000/4500/6000 | 89/95 | 3 1/2” REG, 2 7/8” IF, 3 1/2” IF |
| 114 | 8.5 | 1500/2000/3000 4000/5000/6000 | 89/95 | 3 1/2” REG, 2 7/8” IF, 3 1/2” IF |
| 127 | 10 | 3000/4000/5000 6000/8100/9140 | 89 | 3 1/2” REG, 4 1/2” REG, |
| 127 | 19 | 3000/4000/5000 6000/8100/9140 | 89 | 3 1/2” REG, 4 1/2” REG, |
| 140 | 11 | 3000/4000/5000 6000/8100/9140 10670 | 114 | 4 1/2” REG, |
| 140 | 19 | 3000/4000/5000 6000/8100/9140 10670 | 114 | 4 1/2” REG, |
GSE Drill Pipe
Schramm Carousel style
| mm | mm | mm | mm | mm | mm | Connection |
| OD A | Wall B | Length L | Across Flat C | Flat Length E | Recess Dia.G | Thread |
| 89 | 9.35 | 6096 | 82 | 70 | 70 | 2 3/8”IF |
| 89 | 8.56 | 6096 | 98 | 57 | 89 | 3 1/2” REG |
| 89 | 8.56 | 7620 | 98 | 57 | 89 | 2 7/8”IF |
| 89 | 8.56 | 7620 | 98 | 57 | 89 | 3 1/2” REG |
| 89 | 8.56 | 7620 | 98 | 57 | 89 | 2 7/8”IF |
GSE Drill Pipe
Atlas copco-Ingersill Rand T4 IRT4
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | Connection |
| Diameter A | Wall B | Length L | Wrench Flat E | Recess Dia. G | Across Hex M | Thread |
| 102 | 8.38 | 6350 | 89 | 89 | 95 | 2 7/8” REG |
| 102 | 8.38 | 7620 | 89 | 89 | 95 | 2 7/8” REG |
| 114 | 8.56 | 6350 | 89 | 102 | 86 | 3 1/2” REG |
| 114 | 8.56 | 6350 | 89 | 102 | 86 | 2 7/8” IF |
| 114 | 8.56 | 7620 | 89 | 102 | 86 | 3 1/2” REG |
| 114 | 8.56 | 7620 | 89 | 102 | 86 | 2 7/8” IF |
| 114 | 12.70 | 7620 | 89 | 102 | 86 | 3 1/2” REG |
| 114 | 19.05 | 6350 | 89 | 102 | 86 | 3 1/2” REG |
| 114 | 19.05 | 7620 | 89 | 102 | 86 | 3 1/2” REG |
| 127 | 9.19 | 6350 | 89 | 102 | 89 | 3 1/2” REG |
| 127 | 9.19 | 7620 | 89 | 102 | 89 | 3 1/2” REG |
| 127 | 12.70 | 6350 | 89 | 102 | 89 | 3 1/2” REG |
| 127 | 19.05 | 7620 | 89 | 102 | 89 | 3 1/2” REG |
| 127 | 12.70 | 6350 | 89 | 102 | 89 | 3 1/2” REG |
| 127 | 12.70 | 7620 | 89 | 102 | 89 | 3 1/2” REG |
| 140 | 12.70 | 6350 | 89 | 127 | 86 | 3 1/2”Beco |
| 140 | 12.70 | 7620 | 89 | 127 | 86 | 3 1/2”Beco |
| 140 | 12.70 | 6350 | 89 | 127 | 86 | 4FH |
| 140 | 12.70 | 7620 | 89 | 127 | 86 | 4FH |
| 140 | 19.05 | 6350 | 89 | 127 | 86 | 3 1/2”Beco |
| 140 | 19.05 | 7620 | 89 | 127 | 86 | 3 1/2”Beco |
| 140 | 19.05 | 6350 | 89 | 127 | 86 | 4FH |
| 140 | 19.05 | 7620 | 89 | 127 | 86 | 4FH |
GSE Drill Pipe
Schramm T64 Style
| mm | mm | mm | mm | mm | mm | Thread |
| OD A | Wall B | Length L | Across Flat C | Flat Length E | Dist From Shoulder G | Connection |
| 114 | 8.5 | 6000 | 98 | 51 | 95 | 3 1/2” REG |
| 114 | 8.5 | 6000 | 45 | 51 | 57 | 3 1/2” REG |
GSE Drill Pipe
Drill Pipe for CP650
| mm | mm | mm | mm | mm | mm | Connection |
| OD A | Wall B | Length L | Across Flat C | Flat Length E | Dist From Shoulder G | Thread |
| 114 | 8.56 | 6096 | 95 | 38 | 152 | 3 1/2” REG |
| 114 | 8.56 | 6096 | 95 | 38 | 152 | 3 1/2” REG |
GSE Drill Pipe
Drill Pipes for CM (CM760/780)
| mm | mm | mm | mm | mm | mm | Connection |
| OD A | Wall B | Length L | Across Flat C | Flat Length D | Across Flat E | thread |
| 102 | 8.5 | 4400 | 86 | 76 | 76 | 2 1/2”Z, 3 1/2” REG |
| 102 | 8.5 | 5000 | 86 | 76 | 76 | 2 1/2”Z, 3 1/2” REG |
GSE Drill Pipe
Atlas Copco Roc F6/L6/L8
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | Connection |
| OD A | Wall B | Length L | Across Flat C | Flat Length E | Across Flat G | Thread |
| 76 | 6.3 | 4000 | —— | —— | —— | 2 3/8” REG |
| 76 | 6.3 | 5000 | —— | —— | —— | 2 3/8” REG |
| 89 | 6.3 | 4000 | —— | —— | —— | 2 3/8” REG |
| 89 | 6.3 | 5000 | —— | —— | —— | 2 3/8” REG |
| 89 | 6.3 | 6000 | —— | —— | —— | 2 3/8” REG |
| 89 | 8.8 | 6000 | —— | —— | —— | 2 3/8” REG |
| 102 | 6.3 | 4000 | —— | —— | —— | 2 7/8” REG |
| 102 | 6.3 | 5000 | —— | —— | —— | 2 7/8” REG |
| 102 | 6.3 | 6000 | —— | —— | —— | 2 7/8” REG |
| 114 | 6.3 | 6000 | —— | —— | —— | 3 1/2” REG |
| 114 | 8.8 | 6000 | —— | —— | —— | 3 1/2” REG |
| 114 | 8.8 | 6000 | —— | —— | —— | 4 1/2” REG |
GSE Drill Pipe
Drill Pipes for Sandvik/Drilltech D25/D40K
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | Connection |
| OD A | Wall B | Length L | Across Flat C | Flat Length E | Across Flat G | thread |
| 89 | 8.00 | 6096 | 70 | 317.5 | 83 | 2 3/8”IF |
| 114 | 8.56 | 6096 | 76 | 317.5 | 102 | 3 1/2”REG |
| 114 | 8.56 | 6096 | 76 | 317.5 | 102 | 2 7/8”IF |
| 114 | 8.56 | 7620 | 76 | 317.5 | 102 | 3 1/2”REG |
| 114 | 8.56 | 7620 | 76 | 317.5 | 102 | 2 7/8”IF |
| 114 | 8.56 | 9144 | 76 | 317.5 | 102 | 3 1/2”REG |
| 114 | 12.7 | 7620 | 76 | 317.5 | 102 | 3 1/2”REG |
| 114 | 12.7 | 9144 | 76 | 317.5 | 102 | 3 1/2”REG |
| 114 | 19.05 | 7620 | 76 | 317.5 | 102 | 3 1/2”REG |
| 127 | 12.7 | 7620 | 76 | 317.5 | 102 | 3 1/2”REG |
| 127 | 12.7 | 9144 | 76 | 317.5 | 102 | 3 1/2”REG |
| 127 | 19.05 | 9144 | 76 | 317.5 | 102 | 3 1/2”REG |
| 127 | 19.05 | 7625 | 76 | 317.5 | 117 | 3 1/2”Beco |
| 140 | 19.05 | 7625 | 76 | 317.5 | 117 | 3 1/2”Beco |
| 140 | 19.05 | 9144 | 76 | 317.5 | 117 | 3 1/2”Beco |
Industries We Serve
Our rock drilling equipment can be applied in various industries, doing rock drilling and crushing duties for digging, blasting, etc.
We mainly offer 4 series of rock drilling tools: top hammer drilling tools, down-the-hole (DTH) drilling tools, self-drilling anchor system and drag bits.

