Cable Tool Drill Stem - Tool Bar

The drill stem, referred to as a tool bar, has components similar to the bottom hole assembly used with rotary rigs. Directly above Brent's hand is the stabilizer, below that is called the hydrolift which helps lift the cuttings from the drill bit. The bit is very similar to a rotary down-the-hole hammer bit. The weight of the drill stem, in a dropping motion, breaks the rock with carbide buttons inserted in the bit.