Step Drag Bits

Step Drag Bits
Step Drag Bits
Step Drag Bits
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.
Applications

Water well drilling, coal mining, frozen soil drilling, geological prospecting, etc.

Parameters
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.

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