That's one of the biggest misconceptions - that a product's country of origin has a strong influence as to whether a product is of high or low quality. Instead, it's the company that mostly determines this.
Take Irwin vs. Stanley vs. Gearwrench, for example. Irwin's outsourced tools are quickly dropping in quality. Drill bits that snap like twigs, vice grips with misaligned and sharp edges, pliers with sloppy joints. Take Stanley tools, now. While they're not the greatest quality, I have found that even their outsoruced tools are of decent quality. Sometimes it's hit or miss, but I trust them as a company much more than I trust Irwin and others.
Finally, take Gearwrench. They produce overseas as well, but maintain an excellent amount of control over the production to ensure a quality product. As such, it's a bit unfair to call GW products "Taiwanese" or "Chinese" since they do not fit in with most other products under such a typically negative classification.
I've heard mixed responses about Sunex products, but not many bad things about their impact accessories.