Review on Irwin Tools 1837375 Performance Phillips: Unleashing Optimum Performance by David Barrera

This industrial and scientific drill bit is not worth the price. Thanks to my knowledge gained in practice, I can say that this product has a mediocre performance. While it may work for lightweight jobs, it does not withstand heavy-duty use. The only pro is that it fits in a standard drill chuck. Save your money and invest in a higher quality product. The con is the poor performance.