Tag Archives: Cobble

The dreaded cobble presents a lot of challenges in the field for drillers and contractors. But why?...

Here’s what you need to know about the types of rock bits on the market—and which is best for...

We get calls from drillers asking which Melfred Borzall tool to use, and we always ask three...

For some common situations, you’ll need a few other bits your tool shed to keep production...