The 22 mm Speedbor auger works and the 32 mm Speedbor auger does not work. The problem is the drillers, the 32 mm Speedbor auger, or the log.
You tried multiple drillers with the same result. Unless all of your drillers are underpowered for this job, I would focus on the 32 mm Speedbor auger and the log.
Try comparing the 22 mm and 32 mm Speedbor augers on other woods. If the 32 mm Speedbor auger works well, then the problem might be the log itself, although it is hard to explain why you can drill it with the 22 mm Speedbor auger.
At that point, I would take the 32 mm Speedbor auger back to the source, or contact Irwin directly. Explain what happened. Tell them that the 22 mm Speedbor auger works well and list the troubleshooting steps you took. Ask for their recommendations. I would also ask for a replacement 32 mm Speedbor auger.
Consider other types of drill bits. I prefer Forstner bits, but would recommend trying a spade bit first, because they are inexpensive.
Last edited by Tool Agnostic; 08-08-2019 at 10:40 AM.