DTH bututun rawar soja suna taka muhimmiyar rawa a cikin duk hakowa na DTH, ba tare da la'akari da nau'in dutsen ba, zurfin rami ko na'urar hakowa.

Mahimman siffofi na babban ingancin bututu DTH sune dorewa, daidaito da sarrafawa.

 Rufe Bututu :

1.Pipe jiki: sanyi zana bututu maras kyau.don haka bututu yana da daidaitaccen girman, mai kyau tsakiya.
2.Pipe jiki ta abu ne daya sa a matsayin Sandvik.
3.Thread connector: Heat and Nitrogen treatment , don haka bututun ya fi ɗorewa da sauƙi don saukewa da saukewa.
4.Friction walda.

Daidaitaccen bututun rawar soja na DTH:

Diamita: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm;

Tsawon: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;

Zaren: 2 3/8" API REG, 2 7/8" API REG, 3 1/2" API REG, 4 1/2 " API REG,

2 3/8 API IDAN, 3 1/2 API IDAN