Step Drag bit ndi bowolo lomwe nthawi zambiri limapangidwa kuti lizigwiritsidwa ntchito ngati mchenga, dongo, kapena thanthwe lofewa.Komabe, sizingagwire ntchito bwino pamiyala yolimba kapena miyala yolimba.Ntchito monga kubowola zitsime madzi, migodi, geothermal.chilengedwe ndi pobowola kufufuza.Ngati n'kotheka, agwiritse ntchito kubowola mabowo oyendetsa ndege chifukwa amatulutsa tizidutswa tating'ono ting'onoting'ono.
3 mapiko ma step drag bits ndi chidutswa chimodzi chopangidwa ndi chitsulo chopangidwa ndi tungsten carbide nsonga ndi mbali zoyezera kuti moyo ukhale wautali.Ili ndi mapiko atatu ndi mabowo atatu ogwetsera.Poyerekeza ndi mapiko a 4, mapiko atatu amakoka mapiko amatha kubowola mwachangu komanso mwaukali, pomwe, amakhala amfupi komanso osakhazikika.Kuthamanga kwa tebulo la masitepe kuyenera kukhala pakati pa 60 ndi 80 rpm ndi kulemera kochepa pa bit (WOB).
3 mapiko masitepe kukoka ting'onoting'ono ndi zida chuma pobowola zofewa mapangidwe geological ndi kuya mozama, iwo makamaka opangidwa kuti zofewa tomedium mapangidwe, monga Clay, Loam, Silt, Mostsoft-to-wapakatikati dothi kuti ndi chinyezi, etc. Komanso sitepe kukoka ting'onoting'ono akulimbikitsidwa kubowola mu Mining, Exploration, Environmental, Water well, Geo Exchange, etc.
Zindikirani: M'mimba mwake ndi ulusi womwe wawonetsedwa pamwambapa ndi kukula kwanthawi zonse, makulidwe ena amapezeka mukafunsidwa.
Kukula kwa ulusi: 2 3/8'' API Reg, 2 7/8'' API Reg, 3 1/2'' API Reg, 4 1/2'' API Reg, 6 5/8'' API Reg, 2' ' API IF, 2 3/8'' API IF, 2 7/8'' API IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.
| Bit Diameter | |||||
| ( mainchesi) | (mm) | ( mainchesi) | (mm) | ( mainchesi) | (mm) |
| 3 1/2" | 88.9 mm | 6 1/8" | 155.6 mm | 8 7/8" | 225.4 mm |
| 3 5/8" | 92.1 mm | 6 1/4" | 158.8 mm | 9" | 228.6 mm |
| 3 3/4" | 95.3 mm | 6 1/2" | 165.1 mm | 9 1/8" | 231.8 mm |
| 3 7/8" | 98.4 mm | 6 5/8" | 168.3 mm | 9 1/4" | 235.0 mm |
| 4" | 101.6 mm | 6 3/4" | 171.5 mm | 9 1/2" | 241.3 mm |
| 4 1/8" | 104.8 mm | 6 7/8" | 174.6 mm | 9 5/8" | 244.5 mm |
| 4 1/4" | 108.0 mm | 7" | 177.8 mm | 9 3/4" | 247.7 mm |
| 4 1/2" | 114.3 mm | 7 1/8" | 181.0 mm | 9 7/8" | 250.8 mm |
| 4 5/8" | 117.5 mm | 7 1/4" | 184.2 mm | 10" | 254.0 mm |
| 4 3/4" | 120.7 mm | 7 3/8" | 187.3 mm | 10 5/8" | 269.9 mm |
| 4 7/8" | 123.8 mm | 7 1/2" | 190.5 mm | 11 1/2" | 292.1 mm |
| 5" | 127.0 mm | 7 5/8" | 193.7 mm | 12" | 304.8 mm |
| 5 1/8" | 130.2 mm | 7 3/4" | 196.9 mm | 12 1/4" | 311.2 mm |
| 5 1/4" | 133.4 mm | 7 7/8" | 200.0 mm | 12 1/2" | 317.5 mm |
| 5 3/8" | 136.5 mm | 8" | 203.2 mm | 13 3/4" | 349.3 mm |
| 5 1/2" | 139.7 mm | 8 1/8" | 206.4 mm | 14" | 355.6 mm |
| 5 5/8" | 142.9 mm | 8 1/4" | 209.6 mm | 14 3/4" | 374.7 mm |
| 5 3/4" | 146.1 mm | 8 1/2" | 215.9 mm | 15" | 381.0 mm |
| 5 7/8" | 149.2 mm | 8 5/8" | 219.1 mm | 15 3/4" | 400.1 mm |
| 6" | 152.4 mm | 8 3/4" | 222.3 mm | 17 1/2" | 444.5 mm |
Kokani mapepala a Bits
| Kuchuluka kwa Maoda Ochepa | N / A |
| Mtengo | |
| Tsatanetsatane Pakuyika | Phukusi la Standard Export Delivery |
| Nthawi yoperekera | 7 masiku |
| Malipiro Terms | T/T |
| Kupereka Mphamvu | Kutengera Detailed Order |
