DTH Button Bits

The drilling button bit is the tool cutting the rock, and no hammer or rig drilling is better than the drilling button bit it uses. The down-the-hole drilling button bit is subject to severe stress from the striking piston as well as from the abrasive cuttings passing the button bit at high velocity. When selecting the right drilling button bit for optimum performance you have to balance penetration against button bit life. On occasion you can successfully sacrifice button bit life for penetration. In such cases remember the rule of thumb that states that a 10 increase in penetration covers at least a 20% loss in button bit life.