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Rock Drill Bits Selection Guidance

With many choices available today, selecting the proper bit for a particular application can become quite confusing. There are many types bits and many suppliers, good quality and poor quality products.What is a contractor to do when the success of the drilling operation is directly related to what is screwed on the end of the drill pipe? In an effort to simplify the process, I am going to suggest a few simple steps:

1. Abrasivity of rock types being drilled.

2. Condition of the rock being drilled.

3. Power machine type.

4. RPM - Note High RPM generally requires a softer rock type, whereas low RPM require tougher rock type.

5. Bit type

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