Columnist John Schmitt rounds out his discussion of specialized cable-tool bits for particular drilling challenges.

Columnist John Schmitt talks twisted bits, star bits and others designed for particular drilling challenges.

The bit in cable tool applications makes the hole, but it also mixes cuttings so they can be bailed out.

We talk to longtime columnist, former NGWA President John Schmitt about changing times, advice for new drillers.

In episode 36, the hosts talk to veteran driller and servant of the groundwater industry John Schmitt.

Simple, round steel bar designed to add weight for driving the drill bit.

Drilling jars connect to the socket and enable cable tool drillers to “jar” a stuck string loose.