Step Drag Bits
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Step drag bits is usually applied for cutting rocks.
Features
- Premium YK05 alloy applied;
- Unibody cast skirt;
- High-precision CNC processed thread;
- Complete range of bit sizes;
- Better drilling speed that chevron drag bits.
Water well drilling, coal mining, frozen soil drilling, geological prospecting, etc.
| 3 wings air flush step drag bit | |||
| Diameter | Thread | Part No. | |
| 3 3/4" | 95.3mm | 2 " API IF | 3AS3342IF |
| 2 wings air flush step drag bit | |||
| Diameter | Thread | Part No. | |
| 3 3/4" | 95.3mm | 2 " API IF | 2AS3342IF |
| 3 wings full flush step drag bit | |||
| Diameter | Thread | Part No. | |
| 3 3/4" | 95.3mm | 2 " API IF | 3MS3342IF |
| 3 wings step drag bit | |||||||
| Diameter | Thread | Part No. | Diameter | Thread | Part No. | ||
| 2" | 50.8 mm | optional | 3S2 | 7" | 177.8mm | optional | 3S7 |
| 2 1/2" | 63.5mm | optional | 3S212 | 7 1/8" | 181.0mm | optional | 3S718 |
| 2 5/8" | 66.7 mm | optional | 3S258 | 7 1/4" | 184.2mm | optional | 3S714 |
| 2 3/4" | 69.9 mm | optional | 3S234 | 7 3/8" | 187.3mm | optional | 3S738 |
| 2 7/8" | 73.0 mm | optional | 3S278 | 7 1/2" | 190.5mm | optional | 3S712 |
| 2 15/16" | 74.6 mm | optional | 3S21516 | 7 5/8" | 193.7mm | optional | 3S758 |
| 3" | 76.2 mm | optional | 3S3 | 7 3/4" | 196.9mm | optional | 3S734 |
| 3 1/8" | 79.4 mm | optional | 3S318 | 7 7/8" | 200.0mm | optional | 3S778 |
| 3 1/4" | 82.6 mm | optional | 3S314 | 8" | 203.2mm | optional | 3S8 |
| 3 1/2" | 88.9 mm | optional | 3S312 | 8 1/8" | 206.4mm | optional | 3S818 |
| 3 5/8" | 92.1 mm | optional | 3S358 | 8 1/4" | 209.6mm | optional | 3S814 |
| 3 3/4" | 95.3 mm | optional | 3S334 | 8 1/2" | 215.9mm | optional | 3S812 |
| 3 7/8" | 98.4 mm | optional | 3S378 | 8 5/8" | 219.1mm | optional | 3S858 |
| 4" | 101.6 mm | optional | 3S4 | 8 3/4" | 222.3mm | optional | 3S834 |
| 4 1/8" | 104.8 mm | optional | 3S418 | 8 7/8" | 225.4mm | optional | 3S878 |
| 4 1/4" | 108.0 mm | optional | 3S414 | 9" | 228.6mm | optional | 3S9 |
| 4 1/2" | 114.3 mm | optional | 3S412 | 9 1/8" | 231.8mm | optional | 3S918 |
| 4 5/8" | 117.5 mm | optional | 3S458 | 9 1/4" | 235.0mm | optional | 3S914 |
| 4 3/4" | 120.7mm | optional | 3S434 | 9 1/2" | 241.3mm | optional | 3S912 |
| 4 7/8" | 123.8mm | optional | 3S478 | 9 5/8" | 244.5mm | optional | 3S958 |
| 5" | 127.0mm | optional | 3S5 | 9 3/4" | 247.7mm | optional | 3S934 |
| 5 1/8" | 130.2mm | optional | 3S518 | 9 7/8" | 250.8mm | optional | 3S978 |
| 5 1/4" | 133.4mm | optional | 3S514 | 10" | 254.0mm | optional | 3S10 |
| 5 3/8" | 136.5mm | optional | 3S538 | 10 5/8" | 269.9mm | optional | 3S1058 |
| 5 1/2" | 139.7mm | optional | 3S512 | 11 1/2" | 292.1mm | optional | 3S1112 |
| 5 5/8" | 142.9mm | optional | 3S558 | 12" | 304.8mm | optional | 3S12 |
| 5 3/4" | 146.1mm | optional | 3S534 | 12 1/4" | 311.2mm | optional | 3S1214 |
| 5 7/8" | 149.2mm | optional | 3S578 | 12 1/2" | 317.5mm | optional | 3S1212 |
| 6" | 152.4mm | optional | 3S6 | 13 3/4" | 349.3mm | optional | 3S1334 |
| 6 1/8" | 155.6mm | optional | 3S618 | 14" | 355.6mm | optional | 3S14 |
| 6 1/4" | 158.8mm | optional | 3S614 | 14 3/4" | 374.7mm | optional | 3S1434 |
| 6 1/2" | 165.1mm | optional | 3S612 | 15" | 381.0mm | optional | 3S15 |
| 6 5/8" | 168.3mm | optional | 3S658 | 15 3/4" | 400.1mm | optional | 3S1534 |
| 6 3/4" | 171.5mm | optional | 3S634 | 17 1/2" | 444.5mm | optional | 3S1712 |
| 6 7/8" | 174.6mm | optional | 3S678 | ||||
| 4 wings step drag bit | |||||||
| Diameter | Thread | Part No. | Diameter | Thread | Part No. | ||
| 6 1/2" | 165.1mm | optional | 4S612 | 9 1/4" | 250.0mm | optional | 4S914 |
| 6 3/4" | 171.5mm | optional | 4S634 | 9 1/2" | 241.3mm | optional | 4S912 |
| 6 7/8" | 174.6mm | optional | 4S678 | 9 5/8" | 244.5mm | optional | 4S958 |
| 7" | 177.8mm | optional | 4S7 | 9 3/4" | 247.7mm | optional | 4S934 |
| 7 1/4" | 184.2mm | optional | 4S714 | 9 7/8" | 250.8mm | optional | 4S978 |
| 7 3/8" | 187.3mm | optional | 4S738 | 10" | 254.0mm | optional | 4S10 |
| 7 1/2" | 190.5mm | optional | 4S712 | 10 5/8" | 269.9mm | optional | 4S1058 |
| 7 5/8" | 193.7mm | optional | 4S758 | 11 1/2" | 292.1mm | optional | 4S1112 |
| 7 3/4" | 169.9mm | optional | 4S734 | 12" | 304.8mm | optional | 4S12 |
| 7 7/8" | 200.0mm | optional | 4S778 | 12 1/4" | 311.2mm | optional | 4S1214 |
| 8" | 203.2mm | optional | 4S8 | 12 1/2" | 317.5mm | optional | 4S1212 |
| 8 1/4" | 209.6mm | optional | 4S814 | 13 3/4" | 349.3mm | optional | 4S1334 |
| 8 1/2" | 215.9mm | optional | 4S812 | 14" | 355.6mm | optional | 4S14 |
| 8 5/8" | 219.1mm | optional | 4S858 | 14 3/4" | 374.7mm | optional | 4S1434 |
| 8 3/4" | 222.3mm | optional | 4S834 | 15" | 381.0mm | optional | 4S15 |
| 8 7/8" | 225.4mm | optional | 4S878 | 15 3/4" | 400.0mm | optional | 4S1534 |
| 9" | 228.6mm | optional | 4S9 | 17 1/2" | 444.5mm | optional | 4S1712 |
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.
Tunnelling
Water Well，Geothermal well drilling
Quarry/Aggregate
Mining
Construction
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