What is the junk slot area (JSA)? The junk slot area is a measure of the total cross-sectional area from each junk slot if the drill bit were viewed face-on, expressed in square inches. It is a specialised area designed to clear away debris, also known as “cuttings”, from the bit face while drilling. In video one, Co-owner, Harrie Oort …

A drill bit accounts for a tiny proportion of the cost of your overall drilling operation but failing to use the right drill bit can add substantial costs to the overall project. So, drill bit design is critical to the success of your drilling operation. Our recent article, Drill Bit Design for Beginners, guides on the general importance of drill bit …

Drill bits are like cars. You can look at the fanciest and fastest cars, say a Ferrari. However, if your Ferrari is fitted with inferior components, the performance you achieve will not be what you expected. Drill bits need to deliver every time to ensure that the power delivered by the drilling system is used to the best effect. They …