Pipe ea ho cheka ea 89mm bakeng sa ho cheka seliba sa metsi ka khoele ea API IF
Pipe ena ea ho cheka seliba sa metsi, e leng mokhoa o khutsufalitsoeng oa peipi ea ho phunya lesoba, ke mofuta oa molamu o ka ntle oa ho phunya o bataletseng.E sebelisoa haholo ho cheka rotary percussive e nang le likhase le maro.Likarolo tsa eona tse ka sehloohong li kenyelletsa 'mele oa pipe (molamu) le lenonyeletso.
Pipe ea rona ea ho cheka sekoti e entsoe ho latela litekanyetso tsa API.Mme ho latela litlhoko tse ikhethileng, re boetse re fana ka mofuta ona oa peipi ea ho cheka ea DTH ka litlhaloso tse fapaneng tsa China le Amerika.
Ha e le melemo ea eona, e na le likarolo tsa ho tiea ho hoholo, bokhoni bo botle ba ho tiisa, sebopeho sa kantle se bataletseng, le torque e tlase le ho hanyetsa ha ho potoloha.
Mabapi le sephutheloana, sephutheloana sa liphaephe tsa ho cheka tsa DTH se tla tlatsoa ka sete e le 'ngoe ea foreimi ea tšepe, 'me bongata bo tla ba le liphaephe tse 30 ho isa ho tse 40 tsa ho phunya.
Lintlha tsa Tekheniki tsa Pipe ea DTH Drill (Outer Flat Drill Rod):
| Diameter | Bolelele | Wrench Flats | Likhoele |
| 50-194 limilimithara | 500-10700 limilimithara | 40,57,65,75,83,95 limilimithara | F42×10 F48×10 2 3/8''API REG |
| 2 7/8''API REG 3 1/2''API REG 2 3/8''API HAEBA | |||
| 3 1/2"BECO 4"BECO 4 1/2"BECO | |||
| 5 1/4”BECO |
