China 305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread, Find details about China Drag Bit, Rotary Drill Bit from 305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread
3 wings step drag bits are one piece construction of alloy steel cast with tungsten carbide cutting tips and gauge sides to ensure longer life.
3 wings step drag bits are economical tools when drilling softer geological formations and shallower depths, they are primarilydesigned for soft tomedium formations, such as Clay, Loam, Silt ,Mostsoft-to-medium soilsthat have some moisture, etc. And also step drag bits are recommended for drilling in Mining, Exploration, Environmental, Water well, Geo Exchange, etc.
3 wings step drag bit | |||
Diameter | Thread | Part No. | |
2" | 50.8 mm | optional | 3S2 |
2 1/2" | 63.5mm | optional | 3S212 |
2 5/8" | 66.7 mm | optional | 3S258 |
2 3/4" | 69.9 mm | optional | 3S234 |
2 7/8" | 73.0 mm | optional | 3S278 |
2 15/16" | 74.6 mm | optional | 3S21516 |
3" | 76.2 mm | optional | 3S3 |
3 1/8" | 79.4 mm | optional | 3S318 |
3 1/4" | 82.6 mm | optional | 3S314 |
3 1/2" | 88.9 mm | optional | 3S312 |
3 5/8" | 92.1 mm | optional | 3S358 |
3 3/4" | 95.3 mm | optional | 3S334 |
3 7/8" | 98.4 mm | optional | 3S378 |
4" | 101.6 mm | optional | 3S4 |
4 1/8" | 104.8 mm | optional | 3S418 |
4 1/4" | 108.0 mm | optional | 3S414 |
4 1/2" | 114.3 mm | optional | 3S412 |
4 5/8" | 117.5 mm | optional | 3S458 |
4 3/4" | 120.7mm | optional | 3S434 |
4 7/8" | 123.8mm | optional | 3S478 |
5" | 127.0mm | optional | 3S5 |
5 1/8" | 130.2mm | optional | 3S518 |
5 1/4" | 133.4mm | optional | 3S514 |
5 3/8" | 136.5mm | optional | 3S538 |
5 1/2" | 139.7mm | optional | 3S512 |
5 5/8" | 142.9mm | optional | 3S558 |
5 3/4" | 146.1mm | optional | 3S534 |
5 7/8" | 149.2mm | optional | 3S578 |
6" | 152.4mm | optional | 3S6 |
6 1/8" | 155.6mm | optional | 3S618 |
6 1/4" | 158.8mm | optional | 3S614 |
6 1/2" | 165.1mm | optional | 3S612 |
6 5/8" | 168.3mm | optional | 3S658 |
6 3/4" | 171.5mm | optional | 3S634 |
6 7/8" | 174.6mm | optional | 3S678 |
7" | 177.8mm | optional | 3S7 |
7 1/8" | 181.0mm | optional | 3S718 |
7 1/4" | 184.2mm | optional | 3S714 |
7 3/8" | 187.3mm | optional | 3S738 |
7 1/2" | 190.5mm | optional | 3S712 |
7 5/8" | 193.7mm | optional | 3S758 |
7 3/4" | 196.9mm | optional | 3S734 |
7 7/8" | 200.0mm | optional | 3S778 |
8" | 203.2mm | optional | 3S8 |
8 1/8" | 206.4mm | optional | 3S818 |
8 1/4" | 209.6mm | optional | 3S814 |
8 1/2" | 215.9mm | optional | 3S812 |
8 5/8" | 219.1mm | optional | 3S858 |
8 3/4" | 222.3mm | optional | 3S834 |
8 7/8" | 225.4mm | optional | 3S878 |
9" | 228.6mm | optional | 3S9 |
9 1/8" | 231.8mm | optional | 3S918 |
9 1/4" | 235.0mm | optional | 3S914 |
9 1/2" | 241.3mm | optional | 3S912 |
9 5/8" | 244.5mm | optional | 3S958 |
9 3/4" | 247.7mm | optional | 3S934 |
9 7/8" | 250.8mm | optional | 3S978 |
10" | 254.0mm | optional | 3S10 |
10 5/8" | 269.9mm | optional | 3S1058 |
11 1/2" | 292.1mm | optional | 3S1112 |
12" | 304.8mm | optional | 3S12 |
12 1/4" | 311.2mm | optional | 3S1214 |
12 1/2" | 317.5mm | optional | 3S1212 |
13 3/4" | 349.3mm | optional | 3S1334 |
14" | 355.6mm | optional | 3S14 |
14 3/4" | 374.7mm | optional | 3S1434 |
15" | 381.0mm | optional | 3S15 |
15 3/4" | 400.1mm | optional | 3S1534 |
17 1/2" | 444.5mm | optional | 3S1712 |
Hammer size | Shank type | Recommended DTH bits diameter | Working pressure |
3.5"/3" DTH hammer | COP32, COP34, DHD3.5, MISSION30 | 90mm - 105mm | 8-30 bar |
4" DTH hammer | DHD340, QL40, MISSION40, SD4, TD40, COP44, COP44 GOLD, COP42 | 110mm - 130mm | 8-30 bar |
5" DTH hammer | DHD350, QL50, MISSION50, SD5, TD50, COP54, COP54 GOLD | 134mm - 152mm | 8-30 bar |
6" DTH hammer | DHD360, QL60, MISSION60, SD6, TD60, COP64, COP64 GOLD, COP66 | 152mm - 203mm | 8-30 bar |
8" DTH hammer | DHD380, QL80, MISSION80, SD8 | 203mm - 305mm | 8-30 bar |
10" DTH hammer | SD10, Numa100 | 240mm - 311mm | 17-24 bar |
12" DTH hammer | DHD112, SD12, QL120, Numa120 | 311mm - 445mm | 17-24 bar |
Down The Hole rock drilling tools | Top hammer rock drilling tools | Self drilling anchor system | Drag bits |
- DTH hammers - DTH bits - DTH drill pipes - Odex and Symmeric drilling | - Taper drill bits and rods - Threaded buttons bits and drill rods - Shank adapters - Couplings | - Threaded hollow anchor bars. - Accessories ( drill bit, coupling, nut, plate, centralizer etc.) | - Step drag bit (3 wings, 4 wings ) - Chevron drag bit (3 wings, 4 wings ) |
Application | Application | Application | Application |
Mining, quarry, water well drilling, geothermal drilling, construction foundation work etc. | Mining, quarry, construction foundation work | tunnel roof support, slop stability, Soil nailing, rock bolting, micropile etc. | mining, water well drilling, geothermal drilling etc. |