Drilling bit is the major tool that located at the end of the drillstring. The bit generates the drilling action by scraping, chipping, gouging, or grinding the rock. To help the drill to conduct the cutting action drilling fluid is circulated through the bit to remove the drilled cuttings generated inside the wellbore.
There are many variations of bit designs available. The selection of the bit for a particular application will depend on the type of formation to be drilled as well as the expected operating conditions during the drilling process.
