hat
Pyès sa yo ap soti preform lòt pi chè pyès si te itilize fè a se sa. Forage tire pyès ki trè popilè chwa pou tranbleman de tè forage, eksplozyon an te pi forage ak aplikasyon forage géothermique. Pou pi bon rezilta ajiste gwo vitès wotasyonèl an pou 50% mwens ke sa ou ta nòmalman yo itilize pou yon ti tricone te gen menm lajè epi redwi pwa sou moso pa menm montan an.
eng
These bits will out preform other more expensive bits if used appropriately. Drilling drag bits are extremely popular choice for seismic drilling, blast hole drilling and geothermal drilling applications. For best results adjust the rotational speed to 50% less than what you would normally use for a tricone bit of the same size and reduce the weight on bit by the same amount.